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):
