The Math.SQRT2 static data property represents the square root of 2, approximately 1.414.
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Math.SQRT2
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Value
Property attributes of Math.SQRT2 |
|
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
Description
Math.SQRT2 is a constant and a more performant equivalent to Math.sqrt(2).
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:
js
function getRoot2() {
return Math.SQRT2;
}
getRoot2(); // 1.4142135623730951
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-math.sqrt2 |
Browser compatibility
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
SQRT2 |
1 | 12 | 1 | 3 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1.0 | 0.10.0 | |
See also
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/SQRT2