JavaScript Math asin() method

The JavaScript math asin() method returns the arcsine of the given number in the form of radians. The asin() method must be in the range -1 to 1, otherwise it returns NaN.

Syntax

The asin() method is represented by the following syntax:

Parameter

num - A number.

Return

The arcsine of the number.

JavaScript Math asin() method example

Here, we will understand asin() method through various examples.

Example 1

Let's see a simple example of asin() method.

Output:

-1.5707963267948966
0
0.5235987755982989
1.5707963267948966

Example 2

Let's see some cases where asin() method returns NaN.

Output:

NaN
NaN
NaN

Example 3

Here, you can test asin() method with your own test cases.