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<!DOCTYPE html> <html> <head> <title>File Inputs Validation Example</title> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script> $(document).ready(function(){ $("form").submit(function(event){ event.preventDefault(); var fileInput = $("#fileInput")[0].files[0]; if (!fileInput) { alert("Please select a file."); } else if (fileInput.size > 1048576) { // 1MB alert("File size must be less than 1MB."); } else { alert("Form submitted successfully."); } }); }); </script> </head> <body> <form> <input type="file" id="fileInput"><br> <input type="submit" value="Submit" /> </form> </body> </html>
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