What is Math.abs() in JavaScript function ?

What is Math.abs()?

Math.abs() is a built-in JavaScript function that returns the absolute value of a given number. The absolute value of a number is its non-negative value, irrespective of its sign. This means Math.abs() will convert negative numbers to positive numbers, while positive numbers and zero remain unchanged.

Syntax

javascript
Math.abs(x)

• x: A number or an expression that evaluates to a number.

How It Works

• If the input number is positive, Math.abs(x) returns x.
• If the input number is negative, Math.abs(x) returns -x (the positive counterpart).
• If the input number is zero, Math.abs(x) returns 0.

Examples

1. Positive Number:

javascript
let positiveNumber = 10;
console.log(Math.abs(positiveNumber)); // Output: 10

1. Negative Number:

javascript
let negativeNumber = -10;
console.log(Math.abs(negativeNumber)); // Output: 10

1. Zero:

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let zero = 0;
console.log(Math.abs(zero)); // Output: 0

1. Expression:

let expression = -5 * 3;

console.log(Math.abs(expression)); // Output: 15