Math.SQRT2

The Math.SQRT2 property represents the square root of 2, approximately 1.414:

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

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 2017 Draft (ECMA-262) The definition of 'Math.SQRT2' in that specification.	Draft

Browser compatibility

See also

• Math.pow()
• Math.sqrt()