The Math.SQRT2 property represents the square root of 2, approximately 1.414:
Property attributes of Math.SQRT2 |
|
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
Description
Because SQRT2 is a static property of Math, you always use it as Math.SQRT2, rather than as a property of a Math object you created (Math is not a constructor).
Examples
Using Math.SQRT2
The following function returns the square root of 2:
function getRoot2() {
return Math.SQRT2;
}
getRoot2(); // 1.4142135623730951
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.0. |
| ECMAScript 5.1 (ECMA-262) The definition of 'Math.SQRT2' in that specification. |
Standard | |
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Math.SQRT2' in that specification. |
Standard | |
| ECMAScript Latest Draft (ECMA-262) The definition of 'Math.SQRT2' 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.
| Feature | Chrome | Firefox | Edge | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic Support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
| Feature | Android | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
|---|---|---|---|---|---|---|---|
| Basic Support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |