js check file extension code example
Example 1: javascript get file extension
var fileName = "myDocument.pdf";
var fileExtension = fileName.split('.').pop(); //"pdf"
Example 2: how to get file extension in javascript
var fileName = "myDocument.pdf";
var fileExtension = fileName.split('.').pop(); //"pdf"
Example 3: how to check the extension of a file in javascript
return filename.split('.').pop();