js get filename without extension code example

Example 1: exclude extension from filename javascript

const file = 'test.jpg';
const filename = file.split('.').slice(0, -1).join('.');

Example 2: how to get the extension from filename using javascript

var ext = fileName.substr(fileName.lastIndexOf('.') + 1);

Example 3: node js get file name without extension

filename.split('.').slice(0, -1).join('.')