24 Javascript Get Extension From Filename



Fast and short way to extract extension from file name in JavaScript will be: function get_extension(filename) { return filename.slice((filename.lastIndexOf('.') - 1 >>> 0) + 2); } It works correctly both with names having no extension (e.g. myfile ) or starting with . dot (e.g. .htaccess ): 18/6/2021 · Now that you know how the two methods work, you can chain call the methods to get the extension of a filename as follows: let filename = "index.js" ; let extension = filename . split ( "." ). pop (); console . log ( extension ); // "js"

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26/2/2020 · Write a JavaScript exercise to get the extension of a filename. Pictorial Presentation: Sample Solution: HTML Code: <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> <title>The extension of a filename.</title> </head> <body> </body> </html> JavaScript Code:

Javascript get extension from filename. 9/10/2008 · function getExtension(path) { var basename = path.split(/[\\/]/).pop(), // extract file name from full path ... // (supports `\\` and `/` separators) pos = basename.lastIndexOf("."); // get last position of `.` if (basename === "" || pos < 1) // if file name is empty or ... 28/5/2020 · A clear solution with extra full path support, here is an extended version: function getExtension(path) { let baseName = path.split ( / [\\/]/ ).pop (), // extracts file name from full path // (supports separators `\\` and `/`) pos = baseName.lastIndexOf ( "." 24/3/2009 · get the value in the variable & then separate its extension just like this. var find_file_ext=document.getElementById('filename').value; var file_ext=/[^.]+$/.exec(find_file_ext); This will …

9/8/2019 · To get file extensions using JavaScript, there are so many ways. The most useful ones are: split() and pop() method; substring() and lastIndexOf() method; match() method with regular expression. Above methods are described below one by one with the proper example. Using split() and pop() method: 21/11/2020 · For the purpose of this post we will consider a filename extension to be delimited from the filename with a dot character.Here are a few typical examples: index.html - .html is the filename extension; app.js - .js is the filename extension; package.json - .json is the filename extension; README.md - .md is the filename extension // program to get the file extension function getFileExtension(filename){ // get file extension const extension = filename.split('.').pop(); return extension; } // passing the filename const result1 = getFileExtension('module.js'); console.log(result1); const result2 = getFileExtension('module.txt'); console.log(result2);

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