index.md

title	slug	page-type	browser-compat
Math.SQRT2	Web/JavaScript/Reference/Global_Objects/Math/SQRT2	javascript-static-data-property	javascript.builtins.Math.SQRT2

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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{\mi{Math.SQRT2}} = \sqrt{2} \approx 1.414

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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:

function getRoot2() {
  return Math.SQRT2;
}

getRoot2(); // 1.4142135623730951

Specifications

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Browser compatibility

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See also

• {{jsxref("Math.pow()")}}
• {{jsxref("Math.sqrt()")}}