JSFiddle - React, Tailwind, and code Playground

by prozoroff

HTML

<div id = "cccc">123</div>

JavaScript

function addEvent(elm, evType, useCapture) {
    
    attachAlert = function(){
    alert('attachAlert');
}
    
    addAlert = function(){
    alert('addAlert');
}
    
    if (elm.addEventListener) {
        elm.addEventListener(evType, addAlert, useCapture); //DOM2.0
        return true;
    } else if (elm.attachEvent) {
        var r = elm.attachEvent('on' + evType, attachAlert); //IE5+
        return r;
    } else {
        elm['on' + evType] = fn; //DOM 0
    }
}


var ccc = document.getElementById('cccc');
addEvent(ccc,'click',false);