Check Uploaded File extension using Javascript
function CheckExtension(file) { /*global document: false */ var validFilesTypes = ["png", "jpg", "pdf"]; // var filePath = file.value; var ext = file.substring(file.lastIndexOf('.') + 1).toLowerCase(); isValidFile = false; for (var i = 0; i < validFilesTypes.length; i++) { if (ext == validFilesTypes[i]) { isValidFile = true; break; } } if (!isValidFile) { file.value = null; alert(" Invalid File Format(allowed Format: .pdf .jpg .png)"); ...