RangeError对象标明一个错误，当一个值不在其所允许的范围或者集合中。
语法
new RangeError([message[, fileName[, lineNumber]]])参数
message- 可选，可读的错误描述
fileName- 可选，包含造成异常代码的文件名
lineNumber- 可选，造成异常的代码所在的行数
描述
试图传递一个number参数给一个范围内不包含该number的函数时则会引发RangeError。当传递一个不合法的length值作为Array 构造器的参数创建数组，或者传递错误值到数值计算方法（Number.toExponential()，Number.toFixed() ，Number.toPrecision()），会出现RangeError。.
属性
RangeError.prototype允许在RangeError对象上附加属性。
方法
RangeError全局对象没有自带方法，但它通过可以原型链继承一些方法。
RangeError实例
属性
RangeError.prototype.constructor- Specifies the function that created an instance's prototype.
RangeError.prototype.message- Error message. Although ECMA-262 specifies that
RangeErrorshould provide its ownmessageproperty, in SpiderMonkey, it inheritsError.prototype.message. RangeError.prototype.name- Error name. Inherited from
Error. RangeError.prototype.fileName- Path to file that raised this error. Inherited from
Error. RangeError.prototype.lineNumber- Line number in file that raised this error. Inherited from
Error. RangeError.prototype.columnNumber- Column number in line that raised this error. Inherited from
Error. RangeError.prototype.stack- Stack trace. Inherited from
Error.
方法
Although the RangeError prototype object does not contain any methods of its own, RangeError instances do inherit some methods through the prototype chain.
例子
使用RangeError
var check = function(num) {
if (num < MIN || num > MAX) {
throw new RangeError('Parameter must be between ' + MIN + ' and ' + MAX);
}
};
try {
check(500);
}
catch (e) {
if (e instanceof RangeError) {
// 处理越界错误
}
}
规范
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 3rd Edition (ECMA-262) | Standard | Initial definition. |
| ECMAScript 5.1 (ECMA-262) RangeError |
Standard | |
| ECMAScript 2015 (6th Edition, ECMA-262) RangeError |
Standard | |
| ECMAScript Latest Draft (ECMA-262) RangeError |
Draft |
浏览器兼容性
We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |