The task is to get the fileSize when a user uploads it using JQuery.
Approach:
- Display the text Choose file from system to get the fileSize on the screen.
- Click on the browse button to select the upload file.
- After selecting a file, the function is called which display the size of the selected file.
- The function uses file.size method to display the file size in bytes.
Example 1: This example adds an event to the input[type=file] element and when user uploads the file, the size of the file prints on screen.
<!DOCTYPE html> <html>   <head>     <title>         How to get the input file size in jQuery ?     </title>           <script src=     </script> </head>   <body style="text-align:center;">           <h1 style="color:green;">         neveropen     </h1>           <p id="GFG_UP" style=         "font-size: 15px; font-weight: bold;">     </p>           <input type="file" id="File" />           <br><br>           <p id="GFG_DOWN" style=         "color:green; font-size: 20px; font-weight: bold;">     </p>           <script>         $('#GFG_UP').text("Choose file from system to get the fileSize");         $('#File').on('change', function() {             $('#GFG_DOWN').text(this.files[0].size + "bytes");         });     </script> </body>   </html>                    |
Output:
-
Before selecting the file:
-
After selecting the file:
Example 2: This example adds an event to the input[type=file] element and when user uploads the file, the size of the file prints on screen. This example allows the users to upload file of size lesser than 2MB.
<!DOCTYPE html> <html>   <head>     <title>         How to get the input file size in jQuery ?     </title>           <script src=     </script> </head>   <body style="text-align:center;">     <h1 style="color:green;">         neveropen     </h1>           <p id="GFG_UP" style=         "font-size: 15px; font-weight: bold;">     </p>           <input type="file" id="File" />           <br><br>           <p id="GFG_DOWN" style=         "color:green; font-size: 20px; font-weight: bold;">     </p>           <script>         $('#GFG_UP').text("Choose file from system to get the fileSize");         $('#File').on('change', function() {             if (this.files[0].size > 2097152) {                 alert("Try to upload file less than 2MB!");             } else {                 $('#GFG_DOWN').text(this.files[0].size + "bytes");             }         });     </script> </body>   </html>                    |
Output:
-
Before selecting the file:
-
After selecting the file(size>2MB):
