To get the value of pi in JavaScript, the easiest way is use the JavaScript math module constant **pi**. Math.PI returns the value 3.141592653589793.

```
console.log(Math.PI)
//Output:
3.141592653589793
```

In JavaScript, we can easily get the value of pi for use in trigonometry

with the JavaScript math module.

For example, let’s say we want to find the sine of a number. The JavaScript sin() function takes a number in radians and then finds the sine of the number.

To find the sine of a number, we can use pi to make our lives easy.

To get the value of pi in your JavaScript code, you just need access the ‘PI’ property as shown below.

`console.log(Math.PI)`

Then, if you want to use it like in our example with finding the sine of a number, you can use the pi constant in the following way.

```
console.log(Math.sin(Math.PI/3))
#Output:
0.8660254037844386
```

Hopefully this article has been helpful for you to understand how to find the value of pi from the JavaScript math module.

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