javascript get file extension
var fileName = "myDocument.pdf";
var fileExtension = fileName.split('.').pop(); //"pdf"javascript get file extension
var fileName = "myDocument.pdf";
var fileExtension = fileName.split('.').pop(); //"pdf"javascript - get the filename and extension from input type=file
//Use lastIndexOf to get the last \ as an index and use substr to get the remaining string starting from the last index of \
function getFileNameWithExt(event) {
if (!event || !event.target || !event.target.files || event.target.files.length === 0) {
return;
}
const name = event.target.files[0].name;
const lastDot = name.lastIndexOf('.');
const fileName = name.substring(0, lastDot);
const ext = name.substring(lastDot + 1);
outputfile.value = fileName;
extension.value = ext;
}
<input id='inputfile' type='file' name='inputfile' onChange='getFileNameWithExt(event)'><br>
Output Filename <input id='outputfile' type='text' name='outputfile'><br>
Extension <input id='extension' type='text' name='extension'>Copyright © 2021 Codeinu
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