JSFiddle - React, Tailwind, and code Playground

by joanferns00

HTML

<input type="file" id="myfile">
        <button type="button" onclick="getLength()">Get Length</button>

JavaScript

function getLength(){
     //alert(.length);
     var fullPath = document.getElementById("myfile").value;
     if (fullPath) {
	var startIndex = (fullPath.indexOf('\\') >= 0 ? fullPath.lastIndexOf('\\') : fullPath.lastIndexOf('/'));
	var filename = fullPath.substring(startIndex);
	if (filename.indexOf('\\') === 0 || filename.indexOf('/') === 0) {
		filename = filename.substring(1);
	}
	alert(filename.length);
}
            }