JSFiddle - React, Tailwind, and code Playground

by fstreamz

HTML

<input type="file" id="selectedFile" />

<div id="main"></div>

JavaScript

function readFile(file) {                                                       
    var reader = new FileReader();
    reader.onload = readSuccess;                                            
    function readSuccess(evt) { 
        var field = document.getElementById('main');                        
        field.innerHTML = evt.target.result;                                
    };
    reader.readAsText(file);                                              
} 

document.getElementById('selectedFile').onchange = function(e) {
    readFile(e.srcElement.files[0]);
};