JavaScript Math.SQRT2 Property

Quiz

The Math.SQRT2 property in JavaScript represents the square root of 2, that is approximately 1.41421. It is a predefined property of the Math object in JavaScript. This property is equivalent to Math.sqrt(2).

Syntax

Following is the syntax of JavaScript Math.SQRT2 property −

Math.SQRT2

Return value

This property returns the square root of 2.

Example 1

In the example below, we are using the JavaScript Math.SQRT2 property to retrieve square root of 2 −

<html>
<body>
<script>
   const sqrt2 = Math.SQRT2;
   document.write(sqrt2);
</script>
</body>
</html>

Output

If we execute the above program, this property returns approximately "1.41421".

Example 2

Here, we are calculating the square root of 2 and comparing it with Math.SQRT2 property −

<html>
<body>
<script>
   const value = Math.sqrt(2);
   document.write(value === Math.SQRT2);
</script>
</body>
</html>

Output

After executing the above program, it returns "true" as result because both the values are equal.

Example 3

In this program, the Math.sqrt(number) calculates the square root of 8, and multiplies it by Math.SQRT2 −

<html>
<body>
<script>
   const number = 8;
   const sqrtOfNumber = Math.sqrt(number) * Math.SQRT2;
   document.write(sqrtOfNumber);
</script>
</body>
</html>

Output

After executing the program, it returns "4" as result.

Print Page