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The Number.MIN_SAFE_INTEGER constant represents the minimum safe integer in JavaScript (-(253 - 1)).
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Property attributes of Number.MIN_SAFE_INTEGER |
|
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
Description
The MIN_SAFE_INTEGER constant has a value of -9007199254740991 (-9,007,199,254,740,991 or about -9 quadrillion). The reasoning behind that number is that JavaScript uses double-precision floating-point format numbers as specified in IEEE 754 and can only safely represent numbers between -(253 - 1) and 253 - 1. See Number.isSafeInteger() for more information.
Because MIN_SAFE_INTEGER is a static property of Number, you always use it as Number.MIN_SAFE_INTEGER, rather than as a property of a Number object you created.
Examples
Number.MIN_SAFE_INTEGER // -9007199254740991 -(Math.pow(2, 53) - 1) // -9007199254740991
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Number.MIN_SAFE_INTEGER' in that specification. |
Standard | Initial definition. |
| ECMAScript Latest Draft (ECMA-262) The definition of 'Number.MIN_SAFE_INTEGER' in that specification. |
Draft |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | Node.js | |
| Basic support | Chrome Full support 34 | Edge Full support Yes | Firefox Full support 31 | IE No support No | Opera Full support Yes | Safari Full support 9 | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 31 | Opera Android Full support Yes | Safari iOS Full support 9 | Samsung Internet Android Full support Yes | nodejs Full support 0.12 |
Legend
- Full support
- Full support
- No support
- No support