JavaScript(JS) number method - tostring

The toString() method is a built-in method of the Number object in JavaScript. It returns a string representation of the number in a specified radix (base).

Here's an example usage:

const num = 42;

console.log(num.toString()); // "42"
console.log(num.toString(2)); // "101010"
console.log(num.toString(8)); // "52"
console.log(num.toString(16)); // "2a"

In the above example, the toString() method is called on the num variable, which is assigned the value 42. When called with no argument, the method returns the string "42", which is the decimal representation of the number.

When called with an argument, the toString() method converts the number to the specified radix (base) and returns a string representation of the number in that base. In the example above, the method is called with radixes of 2 (binary), 8 (octal), and 16 (hexadecimal).

Note that the radix argument must be an integer between 2 and 36. If the radix is not in this range, toString() will return NaN.

const num = 42;

console.log(num.toString(1)); // "NaN"
console.log(num.toString(37)); // "NaN"