Examples from "Become a Javascript Console Power-User"

examples.js

// Source: https://www.youtube.com/watch?v=4mf_yNLlgic

// https://www.youtube.com/watch?v=4mf_yNLlgic#t=75
console.time('ajax');
// Do something!
console.timeEnd('ajax');

// https://www.youtube.com/watch?v=4mf_yNLlgic#t=111
console.log(element);
console.dir(element); // or dir(), if in console.

// https://www.youtube.com/watch?v=4mf_yNLlgic#t=183
$0;

// https://www.youtube.com/watch?v=4mf_yNLlgic#t=222
monitorEvents($$('textarea')[0]);

// https://www.youtube.com/watch?v=4mf_yNLlgic#t=270
keys(document);
values(document);

// https://www.youtube.com/watch?v=4mf_yNLlgic
copy(keys(document));