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.

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Value

𝙼𝚊𝚝𝚑.𝚂𝚀𝚁𝚃𝟸 = 2 ≈ 1.414 \mathtt{Math.SQRT2} = \sqrt{2} \approx 1.414
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

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See also