How to validate input type file size in javascript

Created at 18-Aug-2021 , By samar

How to validate input type file size in javascript

In this session, we’ll try our hand at solving the "How to validate input type file size in javascript" puzzle by using the computer language.

You can validate input type file size by getting the size of the image by comparing the specified size on which you want to validate in javascript.
  • Validate input type file size on change in javascript for single file

    <input type="file" name="file" id="file" />
    <div id="resp"></div>
    <!-- jQuery CDN --> 
    <script src="" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
    var fileInput = document.getElementById('file');
    fileInput.addEventListener("change", function(event){
        let file =[0];
        let ResponseTxt = '';
        if(file.size > 1048576){
              ResponseTxt += 'File : ' + ' is greater than 1MB';
          ResponseTxt += 'File : ' + ' is a valid file';
        document.getElementById('resp').innerHTML = "";
        document.getElementById('resp').innerHTML += ResponseTxt;
    <!-- -->

Back to code snippet queries related javascript

If you like what you are reading, please consider buying us a coffee ( or 2 ) as a token of appreciation.

Buy Me A Coffee

Don't forget to share this article! Help us spread the word by clicking the share button below.

We appreciate your support and are committed to providing you valuable and informative content.

We are thankful for your never ending support.