TypeScript / Node.js - check if path is absolute

In this article, we would like to show you how to check if the path is absolute in Node.js.

1. Install node types with the following command:

npm install --save @types/node

2. Import path module using:

import * as path from 'path';

3. Use path.isAbsolute() method with the path you want to check as an argument to find out if it is absolute (true) or relative (false).

Practical example

import * as path from 'path';

// example paths
const absolutePath: string = 'C:/projects/app/index.js';
const relativePath: string = './index.js';

// check if path is absolute
const result1: boolean = path.isAbsolute(absolutePath);
const result2: boolean = path.isAbsolute(relativePath);

console.log(result1); // true
console.log(result2); // false

Output:

true
false

See also

1. Node.js - check if path is absolute (JavaScript solution)