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

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

Browser compatibility

See also

• Math.pow()
• Math.sqrt()