Math.sqrt method

The Math.sqrt method returns the square root of a number.

Syntax

javascriptMath.sqrt(positive number);

Example

Let's take the square root of 4:

javascriptconsole.log(Math.sqrt(4));

The code execution result:

javascript2

Example

Let's get the square root of 15:

javascriptconsole.log(Math.sqrt(15));

The code execution result:

javascript3.872983346207417

Example

Let's take the square root of -100. Since a negative number is passed, NaN will be displayed:

javascriptconsole.log(Math.sqrt(-100));

The code execution result:

javascriptNaN

See also