JavaScript Math.sqrt()
Examples
let x = Math.sqrt(9);
Try it Yourself »
let a = Math.sqrt(0);
let b = Math.sqrt(1);
let c = Math.sqrt(9);
let d = Math.sqrt(64);
let e = Math.sqrt(-9);
Try it Yourself »
let b = Math.sqrt(1);
let c = Math.sqrt(9);
let d = Math.sqrt(64);
let e = Math.sqrt(-9);
Description
The Math.sqrt() method returns the square root of a number.
Syntax
Math.sqrt(x)
Parameters
Parameter
Description
x
Required.
A number.
A number.
Return Value
Type
Description
Number The square root of the number.
NaN if the number negative.
Browser Support
Math. is an ECMAScript1 (JavaScript 1997) feature.
It is supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera |