JavaScript Math.LN2 Property

In JavaScript, the Math.LN2 property is a built-in Math library method. Programmers use it to find the natural logarithm (Base E) of 2, which is 0.693 and always remains constant.

Syntax of JavaScript Math.LN2:

let output = Math.LN2;

Parameters

This method doesn’t take any parameter values.

Return

The Math.LN2 property returns the natural logarithm of 2, which is approximately 0.693.

Example Code: Use the Math.LN2 Property to Find the Natural Logarithm of 2

We have used the Math.LN2 method to find the natural logarithm of the 2 in the example below. In the output below, you can see that it returns the 0.693 value.

let output = Math.LN2;
console.log(output);

Output:

0.6931471805599453

Example Code: Use the Math.LN2 Property as a Default Parameter of a Function

In this example, we have created the function and passed the value of the Math.LN2 property as a default parameter value. The function func returns the multiplication of the first and second arguments, and here, the second argument is the value of Math.LN2.

function func(value1, value2=Math.LN2){
    return value1*value2;
}
let output1 = func(10)
console.log(output1);
console.log(func(2.32));
console.log(func(0.000032));

Output:

6.931471805599453
1.608101458899073
0.000022180709777918248

The Math.LN2 property always returns the constant value, the natural logarithm of 2 that we have seen in this article.