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JavaScript documentation status

Summary

Pages Translated Translations up to date Translations technically reviewed Translations editorially reviewed Macros strings Translated macros strings
803 261 (32%) 4 (1%) 259 (99%) 259 (99%) 57 6 (10%)

Priority articles

Page Translated?
JavaScript Guide Yes, but not up to date (777 days older). Edit.

All articles

Page Translated?
JavaScript Yes, but not up to date (176 days older). Edit.
A re-introduction to JavaScript (JS tutorial) Not available. Translate now.
About JavaScript Not available. Translate now.
Closures Yes, but not up to date (88 days older). Edit.
Concurrency model and Event Loop Yes, but not up to date (386 days older). Edit.
Enumerability and ownership of properties Not available. Translate now.
Equality comparisons and sameness Not available. Translate now.
Index Not available. Translate now.
Inheritance and the prototype chain Yes, but not up to date (73 days older). Edit.
Introduction to Object-Oriented JavaScript Yes, but not up to date (761 days older). Edit.
JavaScript Guide Yes, but not up to date (777 days older). Edit.
Control flow and error handling Yes, but not up to date (227 days older). Edit.
Details of the object model Not available. Translate now.
Expressions and operators Not available. Translate now.
Functions Yes, but editorial review needed. Edit.
Grammar and types Yes, but editorial review needed. Edit.
Indexed collections Not available. Translate now.
Introduction Yes, but not up to date (188 days older). Edit.
Iterators and generators Not available. Translate now.
Keyed collections Not available. Translate now.
Loops and iteration Yes, but not up to date (221 days older). Edit.
Meta programming Not available. Translate now.
Numbers and dates Not available. Translate now.
Regular Expressions Not available. Translate now.
Text formatting Not available. Translate now.
Working with objects Not available. Translate now.
JavaScript data types and data structures Not available. Translate now.
JavaScript language resources Yes, but not up to date (673 days older). Edit.
JavaScript reference Yes, but not up to date (526 days older). Edit.
About this reference Yes, but not up to date (681 days older). Edit.
Classes Not available. Translate now.
constructor Not available. Translate now.
extends Not available. Translate now.
static Not available. Translate now.
Deprecated and obsolete features Yes, but not up to date (618 days older). Edit.
The legacy Iterator protocol Not available. Translate now.
Expressions and operators Yes, but not up to date (442 days older). Edit.
Arithmetic operators Yes, but not up to date (460 days older). Edit.
Array comprehensions Not available. Translate now.
Assignment operators Yes, but not up to date (476 days older). Edit.
Bitwise operators Not available. Translate now.
Comma operator Yes, but not up to date (431 days older). Edit.
Comparison operators Yes, but not up to date (484 days older). Edit.
Conditional (ternary) Operator Yes, but not up to date (192 days older). Edit.
Destructuring assignment Not available. Translate now.
Expression closures Not available. Translate now.
Generator comprehensions Not available. Translate now.
Grouping operator Not available. Translate now.
Legacy generator function expression Not available. Translate now.
Logical Operators Not available. Translate now.
Object initializer Yes, but not up to date (39 days older). Edit.
Operator precedence Yes, but not up to date (310 days older). Edit.
Property accessors Yes, but not up to date (480 days older). Edit.
Spread syntax Yes, but translation in progress. Edit.
class expression Not available. Translate now.
delete operator Yes, but not up to date (118 days older). Edit.
function expression Yes, and up to date.
function* expression Not available. Translate now.
in operator Yes, but not up to date (600 days older). Edit.
instanceof Yes, but not up to date (758 days older). Edit.
new operator Yes, but not up to date (711 days older). Edit.
new.target Not available. Translate now.
super Not available. Translate now.
this Yes, but not up to date (545 days older). Edit.
typeof Yes, but not up to date (809 days older). Edit.
void operator Yes, but not up to date (521 days older). Edit.
yield Not available. Translate now.
yield* Not available. Translate now.
Functions Not available. Translate now.
Arguments object Yes, but not up to date (709 days older). Edit.
arguments.callee Yes, but not up to date (522 days older). Edit.
arguments.caller Yes, but not up to date (809 days older). Edit.
arguments.length Yes, but not up to date (743 days older). Edit.
arguments[@@iterator]() Not available. Translate now.
Arrow functions Not available. Translate now.
Default parameters Not available. Translate now.
Method definitions Not available. Translate now.
Rest parameters Not available. Translate now.
getter Not available. Translate now.
setter Not available. Translate now.
Iteration protocols Not available. Translate now.
JavaScript error reference Not available. Translate now.
Error: Permission denied to access property "x" Not available. Translate now.
InternalError: too much recursion Not available. Translate now.
RangeError: argument is not a valid code point Not available. Translate now.
RangeError: invalid array length Not available. Translate now.
RangeError: precision is out of range Not available. Translate now.
RangeError: radix must be an integer Not available. Translate now.
RangeError: repeat count must be less than infinity Not available. Translate now.
RangeError: repeat count must be non-negative Not available. Translate now.
ReferenceError: "x" is not defined Not available. Translate now.
ReferenceError: assignment to undeclared variable "x" Not available. Translate now.
ReferenceError: deprecated caller or arguments usage Not available. Translate now.
ReferenceError: invalid assignment left-hand side Not available. Translate now.
ReferenceError: reference to undefined property "x" Not available. Translate now.
SyntaxError: "x" is not a legal ECMA-262 octal constant Not available. Translate now.
SyntaxError: JSON.parse: bad parsing Not available. Translate now.
SyntaxError: Malformed formal parameter Not available. Translate now.
SyntaxError: Unexpected token Not available. Translate now.
SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead Not available. Translate now.
SyntaxError: missing ) after argument list Not available. Translate now.
SyntaxError: missing ; before statement Not available. Translate now.
SyntaxError: missing ] after element list Not available. Translate now.
SyntaxError: missing } after property list Not available. Translate now.
SyntaxError: redeclaration of formal parameter "x" Not available. Translate now.
SyntaxError: return not in function Not available. Translate now.
SyntaxError: test for equality (==) mistyped as assignment (=)? Not available. Translate now.
SyntaxError: unterminated string literal Not available. Translate now.
TypeError: "x" has no properties Not available. Translate now.
TypeError: "x" is (not) "y" Not available. Translate now.
TypeError: "x" is not a constructor Not available. Translate now.
TypeError: "x" is not a function Not available. Translate now.
TypeError: "x" is read-only Not available. Translate now.
TypeError: More arguments needed Not available. Translate now.
TypeError: invalid Array.prototype.sort argument Not available. Translate now.
TypeError: property "x" is non-configurable and can't be deleted Not available. Translate now.
TypeError: variable "x" redeclares argument Not available. Translate now.
Warning: -file- is being assigned a //# sourceMappingURL, but already has one Not available. Translate now.
Warning: unreachable code after return statement Not available. Translate now.
JavaScript methods index Not available. Translate now.
JavaScript properties index Not available. Translate now.
Lexical grammar Not available. Translate now.
Standard built-in objects Yes, but not up to date (277 days older). Edit.
Array Yes, but not up to date (395 days older). Edit.
Array.from() Yes, but not up to date (34 days older). Edit.
Array.isArray() Yes, but not up to date (250 days older). Edit.
Array.observe() Not available. Translate now.
Array.of() Not available. Translate now.
Array.prototype Yes, but not up to date (352 days older). Edit.
Array.prototype.concat() Yes, but not up to date (459 days older). Edit.
Array.prototype.copyWithin() Not available. Translate now.
Array.prototype.entries() Not available. Translate now.
Array.prototype.every() Yes, but not up to date (426 days older). Edit.
Array.prototype.fill() Yes, but not up to date (365 days older). Edit.
Array.prototype.filter() Yes, but not up to date (385 days older). Edit.
Array.prototype.find() Yes, but not up to date (290 days older). Edit.
Array.prototype.findIndex() Not available. Translate now.
Array.prototype.forEach() Yes, but not up to date (491 days older). Edit.
Array.prototype.includes() Yes, but not up to date (220 days older). Edit.
Array.prototype.indexOf() Yes, but not up to date (458 days older). Edit.
Array.prototype.join() Yes, but not up to date (458 days older). Edit.
Array.prototype.keys() Not available. Translate now.
Array.prototype.lastIndexOf() Yes, but not up to date (458 days older). Edit.
Array.prototype.map() Yes, and up to date.
Array.prototype.pop() Yes, but not up to date (461 days older). Edit.
Array.prototype.push() Yes, but not up to date (458 days older). Edit.
Array.prototype.reduce() Yes, but not up to date (245 days older). Edit.
Array.prototype.reduceRight() Not available. Translate now.
Array.prototype.reverse() Yes, but not up to date (461 days older). Edit.
Array.prototype.shift() Yes, but not up to date (459 days older). Edit.
Array.prototype.slice() Yes, but not up to date (459 days older). Edit.
Array.prototype.some() Yes, but not up to date (366 days older). Edit.
Array.prototype.sort() Yes, but not up to date (447 days older). Edit.
Array.prototype.splice() Yes, and up to date.
Array.prototype.toLocaleString() Yes, but not up to date (251 days older). Edit.
Array.prototype.toSource() Yes, but not up to date (461 days older). Edit.
Array.prototype.toString() Yes, but not up to date (253 days older). Edit.
Array.prototype.unshift() Yes, but not up to date (459 days older). Edit.
Array.prototype.values() Not available. Translate now.
Array.prototype[@@iterator]() Not available. Translate now.
Array.prototype[@@unscopables] Not available. Translate now.
Array.unobserve() Not available. Translate now.
array.length Yes, but not up to date (405 days older). Edit.
get Array[@@species] Not available. Translate now.
ArrayBuffer Not available. Translate now.
ArrayBuffer.isView() Not available. Translate now.
ArrayBuffer.prototype Not available. Translate now.
ArrayBuffer.prototype.byteLength Not available. Translate now.
ArrayBuffer.prototype.slice() Not available. Translate now.
ArrayBuffer.transfer() Not available. Translate now.
get ArrayBuffer[@@species] Not available. Translate now.
Atomics Not available. Translate now.
Atomics.add() Not available. Translate now.
Atomics.and() Not available. Translate now.
Atomics.compareExchange() Not available. Translate now.
Atomics.exchange() Not available. Translate now.
Atomics.isLockFree() Not available. Translate now.
Atomics.load() Not available. Translate now.
Atomics.or() Not available. Translate now.
Atomics.store() Not available. Translate now.
Atomics.sub() Not available. Translate now.
Atomics.wait() Not available. Translate now.
Atomics.wake() Not available. Translate now.
Atomics.xor() Not available. Translate now.
Boolean Yes, but not up to date (473 days older). Edit.
Boolean.prototype Yes, but not up to date (252 days older). Edit.
Boolean.prototype.toSource() Yes, but not up to date (465 days older). Edit.
Boolean.prototype.toString() Yes, but not up to date (465 days older). Edit.
Boolean.prototype.valueOf() Yes, but not up to date (465 days older). Edit.
DataView Not available. Translate now.
DataView.prototype Not available. Translate now.
DataView.prototype.buffer Not available. Translate now.
DataView.prototype.byteLength Not available. Translate now.
DataView.prototype.byteOffset Not available. Translate now.
DataView.prototype.getFloat32() Not available. Translate now.
DataView.prototype.getFloat64() Not available. Translate now.
DataView.prototype.getInt16() Not available. Translate now.
DataView.prototype.getInt32() Not available. Translate now.
DataView.prototype.getInt8() Not available. Translate now.
DataView.prototype.getUint16() Not available. Translate now.
DataView.prototype.getUint32() Not available. Translate now.
DataView.prototype.getUint8() Not available. Translate now.
DataView.prototype.setFloat32() Not available. Translate now.
DataView.prototype.setFloat64() Not available. Translate now.
DataView.prototype.setInt16() Not available. Translate now.
DataView.prototype.setInt32() Not available. Translate now.
DataView.prototype.setInt8() Not available. Translate now.
DataView.prototype.setUint16() Not available. Translate now.
DataView.prototype.setUint32() Not available. Translate now.
DataView.prototype.setUint8() Not available. Translate now.
Date Yes, but not up to date (467 days older). Edit.
Date.UTC() Yes, but not up to date (470 days older). Edit.
Date.now() Yes, but not up to date (333 days older). Edit.
Date.parse() Yes, but not up to date (470 days older). Edit.
Date.prototype Yes, but not up to date (252 days older). Edit.
Date.prototype.getDate() Yes, but not up to date (470 days older). Edit.
Date.prototype.getDay() Yes, but not up to date (241 days older). Edit.
Date.prototype.getFullYear() Yes, but not up to date (470 days older). Edit.
Date.prototype.getHours() Yes, but not up to date (470 days older). Edit.
Date.prototype.getMilliseconds() Yes, but not up to date (470 days older). Edit.
Date.prototype.getMinutes() Yes, but not up to date (470 days older). Edit.
Date.prototype.getMonth() Yes, but not up to date (470 days older). Edit.
Date.prototype.getSeconds() Yes, but not up to date (241 days older). Edit.
Date.prototype.getTime() Yes, but not up to date (472 days older). Edit.
Date.prototype.getTimezoneOffset() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCDate() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCDay() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCFullYear() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCHours() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCMilliseconds() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCMinutes() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCMonth() Yes, but not up to date (470 days older). Edit.
Date.prototype.getUTCSeconds() Yes, but not up to date (470 days older). Edit.
Date.prototype.getYear() Yes, but not up to date (470 days older). Edit.
Date.prototype.setDate() Yes, but not up to date (470 days older). Edit.
Date.prototype.setFullYear() Yes, but not up to date (470 days older). Edit.
Date.prototype.setHours() Yes, but not up to date (470 days older). Edit.
Date.prototype.setMilliseconds() Yes, but not up to date (469 days older). Edit.
Date.prototype.setMinutes() Yes, but not up to date (469 days older). Edit.
Date.prototype.setMonth() Yes, but not up to date (469 days older). Edit.
Date.prototype.setSeconds() Yes, but not up to date (469 days older). Edit.
Date.prototype.setTime() Yes, but not up to date (469 days older). Edit.
Date.prototype.setUTCDate() Yes, but not up to date (469 days older). Edit.
Date.prototype.setUTCFullYear() Yes, but not up to date (470 days older). Edit.
Date.prototype.setUTCHours() Yes, but not up to date (470 days older). Edit.
Date.prototype.setUTCMilliseconds() Yes, but not up to date (470 days older). Edit.
Date.prototype.setUTCMinutes() Yes, but not up to date (470 days older). Edit.
Date.prototype.setUTCMonth() Yes, but not up to date (470 days older). Edit.
Date.prototype.setUTCSeconds() Yes, but not up to date (470 days older). Edit.
Date.prototype.setYear() Yes, but not up to date (470 days older). Edit.
Date.prototype.toDateString() Not available. Translate now.
Date.prototype.toGMTString() Yes, but not up to date (469 days older). Edit.
Date.prototype.toISOString() Not available. Translate now.
Date.prototype.toJSON() Not available. Translate now.
Date.prototype.toLocaleDateString() Yes, but not up to date (489 days older). Edit.
Date.prototype.toLocaleFormat() Not available. Translate now.
Date.prototype.toLocaleString() Yes, but not up to date (469 days older). Edit.
Date.prototype.toLocaleTimeString() Yes, but not up to date (469 days older). Edit.
Date.prototype.toSource() Yes, but not up to date (469 days older). Edit.
Date.prototype.toString() Yes, but not up to date (469 days older). Edit.
Date.prototype.toTimeString() Not available. Translate now.
Date.prototype.toUTCString() Yes, but not up to date (470 days older). Edit.
Date.prototype.valueOf() Yes, but not up to date (470 days older). Edit.
Date.prototype[@@toPrimitive] Not available. Translate now.
Error Yes, but not up to date (304 days older). Edit.
Error.prototype Yes, but not up to date (153 days older). Edit.
Error.prototype.columnNumber Yes, but not up to date (347 days older). Edit.
Error.prototype.fileName Not available. Translate now.
Error.prototype.lineNumber Not available. Translate now.
Error.prototype.message Yes, but not up to date (153 days older). Edit.
Error.prototype.name Yes, but not up to date (153 days older). Edit.
Error.prototype.stack Not available. Translate now.
Error.prototype.toSource() Not available. Translate now.
Error.prototype.toString() Not available. Translate now.
EvalError Not available. Translate now.
EvalError.prototype Not available. Translate now.
Float32Array Not available. Translate now.
Float64Array Not available. Translate now.
Function Yes, but not up to date (211 days older). Edit.
Function.arguments Yes, but not up to date (251 days older). Edit.
Function.arity Yes, but not up to date (22 days older). Edit.
Function.caller Yes, but not up to date (130 days older). Edit.
Function.displayName Yes, but not up to date (58 days older). Edit.
Function.length Yes, but not up to date (404 days older). Edit.
Function.name Not available. Translate now.
Function.prototype Not available. Translate now.
Function.prototype.apply() Not available. Translate now.
Function.prototype.bind() Not available. Translate now.
Function.prototype.call() Not available. Translate now.
Function.prototype.isGenerator() Not available. Translate now.
Function.prototype.toSource() Yes, but not up to date (464 days older). Edit.
Function.prototype.toString() Yes, but not up to date (464 days older). Edit.
Generator Not available. Translate now.
Generator.prototype.next() Not available. Translate now.
Generator.prototype.return() Not available. Translate now.
Generator.prototype.throw() Not available. Translate now.
GeneratorFunction Not available. Translate now.
GeneratorFunction.prototype Not available. Translate now.
Infinity Yes, but not up to date (257 days older). Edit.
Int16Array Not available. Translate now.
Int32Array Not available. Translate now.
Int8Array Not available. Translate now.
InternalError Not available. Translate now.
InternalError.prototype Not available. Translate now.
Intl Not available. Translate now.
Intl.getCanonicalLocales() Not available. Translate now.
Intl.Collator Not available. Translate now.
Intl.Collator.prototype Not available. Translate now.
Intl.Collator.prototype.compare Not available. Translate now.
Intl.Collator.prototype.resolvedOptions() Not available. Translate now.
Intl.Collator.supportedLocalesOf() Not available. Translate now.
Intl.DateTimeFormat Not available. Translate now.
Intl.DateTimeFormat.prototype Not available. Translate now.
Intl.DateTimeFormat.prototype.format Not available. Translate now.
Intl.DateTimeFormat.prototype.formatToParts() Not available. Translate now.
Intl.DateTimeFormat.prototype.resolvedOptions() Not available. Translate now.
Intl.DateTimeFormat.supportedLocalesOf() Not available. Translate now.
Intl.NumberFormat Not available. Translate now.
Intl.NumberFormat.prototype Not available. Translate now.
Intl.NumberFormat.prototype.format Not available. Translate now.
Intl.NumberFormat.prototype.resolvedOptions() Not available. Translate now.
Intl.NumberFormat.supportedLocalesOf() Not available. Translate now.
Iterator Not available. Translate now.
JSON Not available. Translate now.
JSON.parse() Not available. Translate now.
JSON.stringify() Not available. Translate now.
Map Not available. Translate now.
Map.prototype Not available. Translate now.
Map.prototype.clear() Not available. Translate now.
Map.prototype.delete() Not available. Translate now.
Map.prototype.entries() Not available. Translate now.
Map.prototype.forEach() Not available. Translate now.
Map.prototype.get() Not available. Translate now.
Map.prototype.has() Not available. Translate now.
Map.prototype.keys() Not available. Translate now.
Map.prototype.set() Not available. Translate now.
Map.prototype.size Not available. Translate now.
Map.prototype.values() Not available. Translate now.
Map.prototype[@@iterator]() Not available. Translate now.
Map.prototype[@@toStringTag] Not available. Translate now.
get Map[@@species] Not available. Translate now.
Math Yes, but not up to date (448 days older). Edit.
Math.E Yes, but not up to date (253 days older). Edit.
Math.LN10 Yes, but not up to date (253 days older). Edit.
Math.LN2 Yes, but not up to date (253 days older). Edit.
Math.LOG10E Yes, but not up to date (252 days older). Edit.
Math.LOG2E Yes, but not up to date (252 days older). Edit.
Math.PI Yes, but not up to date (252 days older). Edit.
Math.SQRT1_2 Yes, but not up to date (252 days older). Edit.
Math.SQRT2 Yes, but not up to date (252 days older). Edit.
Math.abs() Yes, but not up to date (465 days older). Edit.
Math.acos() Yes, but not up to date (465 days older). Edit.
Math.acosh() Not available. Translate now.
Math.asin() Yes, but not up to date (465 days older). Edit.
Math.asinh() Not available. Translate now.
Math.atan() Yes, but not up to date (465 days older). Edit.
Math.atan2() Yes, but not up to date (465 days older). Edit.
Math.atanh() Not available. Translate now.
Math.cbrt() Not available. Translate now.
Math.ceil() Yes, but not up to date (462 days older). Edit.
Math.clz32() Not available. Translate now.
Math.cos() Yes, but not up to date (466 days older). Edit.
Math.cosh() Not available. Translate now.
Math.exp() Yes, but not up to date (466 days older). Edit.
Math.expm1() Not available. Translate now.
Math.floor() Yes, but not up to date (466 days older). Edit.
Math.fround() Not available. Translate now.
Math.hypot() Not available. Translate now.
Math.imul() Not available. Translate now.
Math.log() Yes, but not up to date (475 days older). Edit.
Math.log10() Not available. Translate now.
Math.log1p() Not available. Translate now.
Math.log2() Not available. Translate now.
Math.max() Yes, but not up to date (241 days older). Edit.
Math.min() Yes, but not up to date (466 days older). Edit.
Math.pow() Yes, but not up to date (466 days older). Edit.
Math.random() Yes, but not up to date (485 days older). Edit.
Math.round() Yes, but not up to date (478 days older). Edit.
Math.sign() Yes, but not up to date (466 days older). Edit.
Math.sin() Yes, but not up to date (466 days older). Edit.
Math.sinh() Not available. Translate now.
Math.sqrt() Yes, but not up to date (468 days older). Edit.
Math.tan() Yes, but not up to date (468 days older). Edit.
Math.tanh() Not available. Translate now.
Math.trunc() Not available. Translate now.
NaN Yes, but not up to date (252 days older). Edit.
Number Yes, but not up to date (410 days older). Edit.
Number.EPSILON Not available. Translate now.
Number.MAX_SAFE_INTEGER Not available. Translate now.
Number.MAX_VALUE Yes, but not up to date (393 days older). Edit.
Number.MIN_SAFE_INTEGER Not available. Translate now.
Number.MIN_VALUE Yes, but not up to date (253 days older). Edit.
Number.NEGATIVE_INFINITY Yes, but not up to date (406 days older). Edit.
Number.NaN Yes, but not up to date (253 days older). Edit.
Number.POSITIVE_INFINITY Yes, but not up to date (253 days older). Edit.
Number.isFinite() Not available. Translate now.
Number.isInteger() Not available. Translate now.
Number.isNaN() Not available. Translate now.
Number.isSafeInteger() Not available. Translate now.
Number.parseFloat() Not available. Translate now.
Number.parseInt() Not available. Translate now.
Number.prototype Not available. Translate now.
Number.prototype.toExponential() Yes, but not up to date (463 days older). Edit.
Number.prototype.toFixed() Yes, but not up to date (463 days older). Edit.
Number.prototype.toLocaleString() Not available. Translate now.
Number.prototype.toPrecision() Yes, but not up to date (457 days older). Edit.
Number.prototype.toSource() Not available. Translate now.
Number.prototype.toString() Yes, but not up to date (463 days older). Edit.
Number.prototype.valueOf() Not available. Translate now.
Number.toInteger() Not available. Translate now.
Object Yes, but not up to date (433 days older). Edit.
Object.assign() Not available. Translate now.
Object.create() Not available. Translate now.
Object.defineProperties() Not available. Translate now.
Object.defineProperty() Not available. Translate now.
Additional examples for Object.defineProperty Not available. Translate now.
Object.entries() Not available. Translate now.
Object.freeze() Not available. Translate now.
Object.getNotifier() Not available. Translate now.
Object.getOwnPropertyDescriptor() Not available. Translate now.
Object.getOwnPropertyDescriptors() Not available. Translate now.
Object.getOwnPropertyNames() Yes, but not up to date (361 days older). Edit.
Object.getOwnPropertySymbols() Not available. Translate now.
Object.getPrototypeOf() Not available. Translate now.
Object.is() Not available. Translate now.
Object.isExtensible() Not available. Translate now.
Object.isFrozen() Not available. Translate now.
Object.isSealed() Not available. Translate now.
Object.keys() Not available. Translate now.
Object.observe() Not available. Translate now.
Object.preventExtensions() Not available. Translate now.
Object.prototype Yes, but technical review needed. Edit.
Object.prototype.__count__ Not available. Translate now.
Object.prototype.__defineGetter__() Not available. Translate now.
Object.prototype.__defineSetter__() Not available. Translate now.
Object.prototype.__lookupGetter__() Not available. Translate now.
Object.prototype.__lookupSetter__() Not available. Translate now.
Object.prototype.__noSuchMethod__ Not available. Translate now.
Object.prototype.__parent__ Not available. Translate now.
Object.prototype.__proto__ Not available. Translate now.
Object.prototype.constructor Yes, but not up to date (258 days older). Edit.
Object.prototype.eval() Yes, but not up to date (82 days older). Edit.
Object.prototype.hasOwnProperty() Yes, but not up to date (421 days older). Edit.
Object.prototype.isPrototypeOf() Not available. Translate now.
Object.prototype.propertyIsEnumerable() Not available. Translate now.
Object.prototype.toLocaleString() Yes, but not up to date (256 days older). Edit.
Object.prototype.toSource() Yes, but not up to date (461 days older). Edit.
Object.prototype.toString() Yes, but not up to date (461 days older). Edit.
Object.prototype.unwatch() Yes, but not up to date (475 days older). Edit.
Object.prototype.valueOf() Yes, but not up to date (461 days older). Edit.
Object.prototype.watch() Yes, but not up to date (475 days older). Edit.
Object.seal() Yes, but not up to date (30 days older). Edit.
Object.setPrototypeOf() Not available. Translate now.
Object.unobserve() Not available. Translate now.
Object.values() Not available. Translate now.
ParallelArray Not available. Translate now.
Promise Not available. Translate now.
Promise.all() Not available. Translate now.
Promise.prototype Not available. Translate now.
Promise.prototype.catch() Not available. Translate now.
Promise.prototype.then() Not available. Translate now.
Promise.race() Not available. Translate now.
Promise.reject() Not available. Translate now.
Promise.resolve() Not available. Translate now.
Proxy Not available. Translate now.
Proxy handler Not available. Translate now.
handler.apply() Not available. Translate now.
handler.construct() Not available. Translate now.
handler.defineProperty() Not available. Translate now.
handler.deleteProperty() Not available. Translate now.
handler.enumerate() Not available. Translate now.
handler.get() Not available. Translate now.
handler.getOwnPropertyDescriptor() Not available. Translate now.
handler.getPrototypeOf() Not available. Translate now.
handler.has() Not available. Translate now.
handler.isExtensible() Not available. Translate now.
handler.ownKeys() Not available. Translate now.
handler.preventExtensions() Not available. Translate now.
handler.set() Not available. Translate now.
handler.setPrototypeOf() Not available. Translate now.
Proxy.revocable() Not available. Translate now.
RangeError Yes, but not up to date (348 days older). Edit.
RangeError.prototype Yes, but not up to date (173 days older). Edit.
ReferenceError Not available. Translate now.
ReferenceError.prototype Not available. Translate now.
Reflect Not available. Translate now.
Reflect.apply() Not available. Translate now.
Reflect.construct() Not available. Translate now.
Reflect.defineProperty() Not available. Translate now.
Reflect.deleteProperty() Not available. Translate now.
Reflect.enumerate() Not available. Translate now.
Reflect.get() Not available. Translate now.
Reflect.getOwnPropertyDescriptor() Not available. Translate now.
Reflect.getPrototypeOf() Not available. Translate now.
Reflect.has() Not available. Translate now.
Reflect.isExtensible() Not available. Translate now.
Reflect.ownKeys() Not available. Translate now.
Reflect.preventExtensions() Not available. Translate now.
Reflect.set() Not available. Translate now.
Reflect.setPrototypeOf() Not available. Translate now.
RegExp Yes, but not up to date (487 days older). Edit.
RegExp.$1-$9 Not available. Translate now.
RegExp.input ($_) Not available. Translate now.
RegExp.lastMatch ($&) Not available. Translate now.
RegExp.lastParen ($+) Not available. Translate now.
RegExp.leftContext ($`) Not available. Translate now.
RegExp.prototype Yes, but not up to date (354 days older). Edit.
RegExp.prototype.compile() Not available. Translate now.
RegExp.prototype.exec() Yes, but not up to date (397 days older). Edit.
RegExp.prototype.flags Not available. Translate now.
RegExp.prototype.global Yes, but not up to date (257 days older). Edit.
RegExp.prototype.ignoreCase Yes, but not up to date (257 days older). Edit.
RegExp.prototype.multiline Not available. Translate now.
RegExp.prototype.source Yes, but not up to date (383 days older). Edit.
RegExp.prototype.sticky Not available. Translate now.
RegExp.prototype.test() Yes, but not up to date (468 days older). Edit.
RegExp.prototype.toSource() Yes, but not up to date (468 days older). Edit.
RegExp.prototype.toString() Yes, but not up to date (468 days older). Edit.
RegExp.prototype.unicode Not available. Translate now.
RegExp.prototype[@@match]() Not available. Translate now.
RegExp.prototype[@@replace]() Not available. Translate now.
RegExp.prototype[@@search]() Not available. Translate now.
RegExp.prototype[@@split]() Not available. Translate now.
RegExp.rightContext ($') Not available. Translate now.
get RegExp[@@species] Not available. Translate now.
regexp.lastIndex Not available. Translate now.
SIMD Not available. Translate now.
SIMD.%type%.abs() Not available. Translate now.
SIMD.%type%.add() Not available. Translate now.
SIMD.%type%.addSaturate() Not available. Translate now.
SIMD.%type%.allTrue() Not available. Translate now.
SIMD.%type%.and() Not available. Translate now.
SIMD.%type%.anyTrue() Not available. Translate now.
SIMD.%type%.check() Not available. Translate now.
SIMD.%type%.div() Not available. Translate now.
SIMD.%type%.equal() Not available. Translate now.
SIMD.%type%.extractLane() Not available. Translate now.
SIMD.%type%.fromFloat32x4() Not available. Translate now.
SIMD.%type%.fromFloat32x4Bits() Not available. Translate now.
SIMD.%type%.fromFloat64x2Bits() Not available. Translate now.
SIMD.%type%.fromInt16x8Bits() Not available. Translate now.
SIMD.%type%.fromInt32x4() Not available. Translate now.
SIMD.%type%.fromInt32x4Bits() Not available. Translate now.
SIMD.%type%.fromInt8x16Bits() Not available. Translate now.
SIMD.%type%.fromUint16x8Bits() Not available. Translate now.
SIMD.%type%.fromUint32x4() Not available. Translate now.
SIMD.%type%.fromUint32x4Bits() Not available. Translate now.
SIMD.%type%.fromUint8x16Bits() Not available. Translate now.
SIMD.%type%.greaterThan() Not available. Translate now.
SIMD.%type%.greaterThanOrEqual() Not available. Translate now.
SIMD.%type%.lessThan() Not available. Translate now.
SIMD.%type%.lessThanOrEqual() Not available. Translate now.
SIMD.%type%.load() Not available. Translate now.
SIMD.%type%.max() Not available. Translate now.
SIMD.%type%.maxNum() Not available. Translate now.
SIMD.%type%.min() Not available. Translate now.
SIMD.%type%.minNum() Not available. Translate now.
SIMD.%type%.mul() Not available. Translate now.
SIMD.%type%.neg() Not available. Translate now.
SIMD.%type%.not() Not available. Translate now.
SIMD.%type%.notEqual() Not available. Translate now.
SIMD.%type%.or() Not available. Translate now.
SIMD.%type%.prototype.toSource() Not available. Translate now.
SIMD.%type%.prototype.toString() Not available. Translate now.
SIMD.%type%.prototype.valueOf() Not available. Translate now.
SIMD.%type%.reciprocalApproximation() Not available. Translate now.
SIMD.%type%.reciprocalSqrtApproximation() Not available. Translate now.
SIMD.%type%.replaceLane() Not available. Translate now.
SIMD.%type%.select() Not available. Translate now.
SIMD.%type%.shiftLeftByScalar() Not available. Translate now.
SIMD.%type%.shiftRightByScalar() Not available. Translate now.
SIMD.%type%.shuffle() Not available. Translate now.
SIMD.%type%.splat() Not available. Translate now.
SIMD.%type%.sqrt() Not available. Translate now.
SIMD.%type%.store() Not available. Translate now.
SIMD.%type%.sub() Not available. Translate now.
SIMD.%type%.subSaturate() Not available. Translate now.
SIMD.%type%.swizzle() Not available. Translate now.
SIMD.%type%.xor() Not available. Translate now.
SIMD.Bool16x8 Not available. Translate now.
SIMD.Bool32x4 Not available. Translate now.
SIMD.Bool64x2 Not available. Translate now.
SIMD.Bool8x16 Not available. Translate now.
SIMD.Float32x4 Not available. Translate now.
SIMD.Float64x2 Not available. Translate now.
SIMD.Int16x8 Not available. Translate now.
SIMD.Int32x4 Not available. Translate now.
SIMD.Int8x16 Not available. Translate now.
SIMD.Uint16x8 Not available. Translate now.
SIMD.Uint32x4 Not available. Translate now.
SIMD.Uint8x16 Not available. Translate now.
Set Not available. Translate now.
Set.prototype Not available. Translate now.
Set.prototype.add() Not available. Translate now.
Set.prototype.clear() Not available. Translate now.
Set.prototype.delete() Not available. Translate now.
Set.prototype.entries() Not available. Translate now.
Set.prototype.forEach() Not available. Translate now.
Set.prototype.has() Not available. Translate now.
Set.prototype.size Not available. Translate now.
Set.prototype.values() Not available. Translate now.
Set.prototype[@@iterator]() Not available. Translate now.
get Set[@@species] Not available. Translate now.
SharedArrayBuffer Not available. Translate now.
SharedArrayBuffer.prototype Not available. Translate now.
SharedArrayBuffer.prototype.byteLength Not available. Translate now.
StopIteration Not available. Translate now.
String Yes, but not up to date (484 days older). Edit.
String.fromCharCode() Yes, but not up to date (164 days older). Edit.
String.fromCodePoint() Not available. Translate now.
String.prototype Yes, but not up to date (405 days older). Edit.
String.prototype.anchor() Yes, but not up to date (459 days older). Edit.
String.prototype.big() Yes, but not up to date (459 days older). Edit.
String.prototype.blink() Yes, but not up to date (458 days older). Edit.
String.prototype.bold() Yes, but not up to date (459 days older). Edit.
String.prototype.charAt() Yes, but not up to date (457 days older). Edit.
String.prototype.charCodeAt() Yes, but not up to date (459 days older). Edit.
String.prototype.codePointAt() Not available. Translate now.
String.prototype.concat() Yes, but not up to date (458 days older). Edit.
String.prototype.endsWith() Not available. Translate now.
String.prototype.fixed() Yes, but not up to date (457 days older). Edit.
String.prototype.fontcolor() Yes, but not up to date (458 days older). Edit.
String.prototype.fontsize() Yes, but not up to date (458 days older). Edit.
String.prototype.includes() Not available. Translate now.
String.prototype.indexOf() Not available. Translate now.
String.prototype.italics() Yes, but not up to date (458 days older). Edit.
String.prototype.lastIndexOf() Not available. Translate now.
String.prototype.link() Yes, but not up to date (458 days older). Edit.
String.prototype.localeCompare() Not available. Translate now.
String.prototype.match() Not available. Translate now.
String.prototype.normalize() Not available. Translate now.
String.prototype.padEnd() Not available. Translate now.
String.prototype.padStart() Not available. Translate now.
String.prototype.quote() Not available. Translate now.
String.prototype.repeat() Not available. Translate now.
String.prototype.replace() Not available. Translate now.
String.prototype.search() Yes, but not up to date (458 days older). Edit.
String.prototype.slice() Yes, but not up to date (458 days older). Edit.
String.prototype.small() Yes, but not up to date (458 days older). Edit.
String.prototype.split() Not available. Translate now.
String.prototype.startsWith() Not available. Translate now.
String.prototype.strike() Yes, but not up to date (458 days older). Edit.
String.prototype.sub() Yes, but not up to date (458 days older). Edit.
String.prototype.substr() Yes, but not up to date (483 days older). Edit.
String.prototype.substring() Yes, but not up to date (458 days older). Edit.
String.prototype.sup() Yes, but not up to date (458 days older). Edit.
String.prototype.toLocaleLowerCase() Not available. Translate now.
String.prototype.toLocaleUpperCase() Not available. Translate now.
String.prototype.toLowerCase() Yes, but not up to date (458 days older). Edit.
String.prototype.toSource() Yes, but not up to date (458 days older). Edit.
String.prototype.toString() Yes, but not up to date (458 days older). Edit.
String.prototype.toUpperCase() Yes, but not up to date (458 days older). Edit.
String.prototype.trim() Not available. Translate now.
String.prototype.trimLeft() Not available. Translate now.
String.prototype.trimRight() Not available. Translate now.
String.prototype.valueOf() Yes, but not up to date (458 days older). Edit.
String.prototype[@@iterator]() Not available. Translate now.
String.raw() Not available. Translate now.
string.length Yes, but not up to date (401 days older). Edit.
Symbol Not available. Translate now.
Symbol.for() Not available. Translate now.
Symbol.hasInstance Not available. Translate now.
Symbol.isConcatSpreadable Not available. Translate now.
Symbol.iterator Not available. Translate now.
Symbol.keyFor() Not available. Translate now.
Symbol.match Not available. Translate now.
Symbol.prototype Not available. Translate now.
Symbol.prototype.toSource() Not available. Translate now.
Symbol.prototype.toString() Not available. Translate now.
Symbol.prototype.valueOf() Not available. Translate now.
Symbol.prototype[@@toPrimitive] Not available. Translate now.
Symbol.replace Not available. Translate now.
Symbol.search Not available. Translate now.
Symbol.species Not available. Translate now.
Symbol.split Not available. Translate now.
Symbol.toPrimitive Not available. Translate now.
Symbol.unscopables Not available. Translate now.
SyntaxError Not available. Translate now.
SyntaxError.prototype Not available. Translate now.
TypeError Not available. Translate now.
TypeError.prototype Not available. Translate now.
TypedArray Not available. Translate now.
TypedArray.BYTES_PER_ELEMENT Not available. Translate now.
TypedArray.from() Not available. Translate now.
TypedArray.name Not available. Translate now.
TypedArray.of() Not available. Translate now.
TypedArray.prototype Not available. Translate now.
TypedArray.prototype.buffer Not available. Translate now.
TypedArray.prototype.byteLength Not available. Translate now.
TypedArray.prototype.byteOffset Not available. Translate now.
TypedArray.prototype.copyWithin() Not available. Translate now.
TypedArray.prototype.entries() Not available. Translate now.
TypedArray.prototype.every() Not available. Translate now.
TypedArray.prototype.fill() Not available. Translate now.
TypedArray.prototype.filter() Not available. Translate now.
TypedArray.prototype.find() Not available. Translate now.
TypedArray.prototype.findIndex() Not available. Translate now.
TypedArray.prototype.forEach() Not available. Translate now.
TypedArray.prototype.includes() Not available. Translate now.
TypedArray.prototype.indexOf() Not available. Translate now.
TypedArray.prototype.join() Not available. Translate now.
TypedArray.prototype.keys() Not available. Translate now.
TypedArray.prototype.lastIndexOf() Not available. Translate now.
TypedArray.prototype.length Not available. Translate now.
TypedArray.prototype.map() Not available. Translate now.
TypedArray.prototype.move() Not available. Translate now.
TypedArray.prototype.reduce() Not available. Translate now.
TypedArray.prototype.reduceRight() Not available. Translate now.
TypedArray.prototype.reverse() Not available. Translate now.
TypedArray.prototype.set() Not available. Translate now.
TypedArray.prototype.slice() Not available. Translate now.
TypedArray.prototype.some() Not available. Translate now.
TypedArray.prototype.sort() Not available. Translate now.
TypedArray.prototype.subarray() Not available. Translate now.
TypedArray.prototype.values() Not available. Translate now.
TypedArray.prototype[@@iterator]() Not available. Translate now.
get TypedArray[@@species] Not available. Translate now.
URIError Not available. Translate now.
URIError.prototype Not available. Translate now.
Uint16Array Yes, but not up to date (193 days older). Edit.
Uint32Array Not available. Translate now.
Uint8Array Not available. Translate now.
Uint8ClampedArray Not available. Translate now.
WeakMap Not available. Translate now.
WeakMap.prototype Not available. Translate now.
WeakMap.prototype.clear() Not available. Translate now.
WeakMap.prototype.delete() Not available. Translate now.
WeakMap.prototype.get() Not available. Translate now.
WeakMap.prototype.has() Not available. Translate now.
WeakMap.prototype.set() Not available. Translate now.
WeakSet Not available. Translate now.
WeakSet.prototype Not available. Translate now.
WeakSet.prototype.add() Not available. Translate now.
WeakSet.prototype.clear() Not available. Translate now.
WeakSet.prototype.delete() Not available. Translate now.
WeakSet.prototype.has() Not available. Translate now.
decodeURI() Yes, but not up to date (482 days older). Edit.
decodeURIComponent() Yes, but not up to date (482 days older). Edit.
encodeURI() Yes, but not up to date (482 days older). Edit.
encodeURIComponent() Yes, but not up to date (482 days older). Edit.
escape() Yes, but not up to date (218 days older). Edit.
eval() Not available. Translate now.
isFinite() Yes, but not up to date (456 days older). Edit.
isNaN() Yes, but not up to date (456 days older). Edit.
null Not available. Translate now.
parseFloat() Yes, but not up to date (456 days older). Edit.
parseInt() Yes, but not up to date (480 days older). Edit.
undefined Yes, but not up to date (390 days older). Edit.
unescape() Not available. Translate now.
uneval() Not available. Translate now.
Statements and declarations Yes, but not up to date (583 days older). Edit.
Legacy generator function Not available. Translate now.
block Yes, but not up to date (742 days older). Edit.
break Yes, but not up to date (573 days older). Edit.
class Not available. Translate now.
const Yes, but not up to date (741 days older). Edit.
continue Not available. Translate now.
debugger Not available. Translate now.
default Not available. Translate now.
do...while Yes, but not up to date (522 days older). Edit.
empty Not available. Translate now.
export Yes, but not up to date (782 days older). Edit.
for Yes, but not up to date (523 days older). Edit.
for each...in Not available. Translate now.
for...in Not available. Translate now.
for...of Not available. Translate now.
function Yes, but not up to date (654 days older). Edit.
function* Not available. Translate now.
if...else Yes, but not up to date (523 days older). Edit.
import Yes, but not up to date (807 days older). Edit.
label Yes, but not up to date (535 days older). Edit.
let Not available. Translate now.
return Yes, but not up to date (523 days older). Edit.
switch Yes, but not up to date (607 days older). Edit.
throw Yes, but not up to date (523 days older). Edit.
try...catch Not available. Translate now.
var Yes, but not up to date (732 days older). Edit.
while Yes, but not up to date (523 days older). Edit.
with Not available. Translate now.
Strict mode Not available. Translate now.
Transitioning to strict mode Not available. Translate now.
Template literals Yes, but not up to date (318 days older). Edit.
JavaScript shells Not available. Translate now.
JavaScript technologies overview Not available. Translate now.
JavaScript typed arrays Yes, but not up to date (250 days older). Edit.
Memory Management Not available. Translate now.
New in JavaScript Yes, but not up to date (654 days older). Edit.
ECMAScript 5 support in Mozilla Not available. Translate now.
ECMAScript 6 support in Mozilla Not available. Translate now.
ECMAScript Next support in Mozilla Not available. Translate now.
Firefox JavaScript changelog Not available. Translate now.
New in JavaScript 1.1 Not available. Translate now.
New in JavaScript 1.2 Not available. Translate now.
New in JavaScript 1.3 Not available. Translate now.
New in JavaScript 1.4 Yes, but not up to date (272 days older). Edit.
New in JavaScript 1.5 Yes, but not up to date (599 days older). Edit.
New in JavaScript 1.6 Yes, but not up to date (675 days older). Edit.
New in JavaScript 1.7 Yes, but not up to date (509 days older). Edit.
New in JavaScript 1.8 Yes, but not up to date (599 days older). Edit.
New in JavaScript 1.8.1 Not available. Translate now.
New in JavaScript 1.8.5 Not available. Translate now.
SIMD types Not available. Translate now.
The performance hazards of [[Prototype]] mutation Not available. Translate now.

Macros

Name Strings Translated
Common 17 3
CompatTable 37 0
JavaScript 3 3

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