JSFiddle - React, Tailwind, and code Playground

by Casiano Rodriguez-Leon

HTML

<input type="file" id="files"/>
<textarea id="myText"></textarea>

JavaScript

document.getElementById('files').addEventListener('change', CopyMe, false);

function CopyMe(evt) {
    var file = evt.target.files[0];
    if (file) {
        var reader = new FileReader();
        reader.onload = function(e) { 
          myText.innerHTML = e.target.result;
        }
        var c = reader.readAsText(file);
    }
    else { alert("Failed to load file"); }
};