JavaScript(JS) math method - log2

The log2 method in JavaScript's Math object returns the base 2 logarithm of a given number. The base 2 logarithm is the inverse of the power function, which means that 2^log2(x) = x.

The log2 method takes one argument, which is the number to be used in the logarithmic calculation. If the argument is not a number or is negative, the result will be NaN.

Here's an example usage:

const x = 8;
const log2X = Math.log2(x);
console.log(log2X); // 3

In the above example, the Math.log2 method is used to calculate the base 2 logarithm of the number 8. The result, which is 3, is then logged to the console.