Showing console errors and alerts in a div inside the page

Question

I\'m building a debugging tool for my web app and I need to show console errors in a div. I know I can use my own made console like object and use it, but for future use I n

Answer 1

Else, if you were concerned at keeping log, warn and error separate from one another, you could do something like this (adapted from MST's answer):

var log = document.querySelector('#log');

['log','warn','error'].forEach(function (verb) {
    console[verb] = (function (method, verb, log) {
        return function (text) {
            method(text);
            // handle distinguishing between methods any way you'd like
            var msg = document.createElement('code');
            msg.classList.add(verb);
            msg.textContent = verb + ': ' + text;
            log.appendChild(msg);
        };
    })(console[verb].bind(console), verb, log);
});

where #log is your HTML element. The variable verb is one of 'log', 'warn', or 'error'. You can then use CSS to style the text in a distinguishable way. Note that a lot of this code isn't compatible with old versions of IE.