JavaScript Number Methods

JavaScript provides several built-in methods for performing operations on numbers. These methods are available on number objects and can be used to manipulate numbers in various ways.

1. toFixed()

Returns a string representing a number with a specified number of decimal places.

const num = 3.14159265359;
console.log(num.toFixed(2)); // Output: "3.14"

2. toPrecision()

Returns a string representing a number in fixed-point or exponential notation, depending on the specified precision.

const num = 12345;
console.log(num.toPrecision(3)); // Output: "1.23e+4"

3. toString()

Returns a string representing the specified number.

const num = 42;
console.log(num.toString()); // Output: "42"

4. toExponential()

Returns a string representing a number in exponential notation with a specified number of digits.

const num = 12345;
console.log(num.toExponential(2)); // Output: "1.23e+4"

These are just a few examples of the number methods available in JavaScript. Each method serves a specific purpose and can be used to manipulate numbers according to your needs.