Math.SQRT2
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Math.SQRT2 static data property represents the square root of 2, approximately 1.414.
Try it
function getRoot2() {
return Math.SQRT2;
}
console.log(getRoot2());
// Expected output: 1.4142135623730951
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® 2026 Language Specification # sec-math.sqrt2 |
Browser compatibility
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