example.txt

npm install yui-repl;

yui3;

YUI@3.3.0> .load http://yuilibrary.com/
Resetting Y to the default state [done]
Fetching URL: http://yuilibrary.com/ [done]

YUI@3.3.0> .debug
Setting debug on the Y instance to: true

YUI@3.3.0> .get https://gist.github.com/raw/906348/d8905da82e08bc55d8c5f879a4a3eb2fa5dea4d4/include.js
Fetching Script: https://gist.github.com/raw/906348/d8905da82e08bc55d8c5f879a4a3eb2fa5dea4d4/include.js [done]

YUI@3.3.0> .use davglass
Using modules: davglass [done]

YUI@3.3.0> Y.davglass();
info: This page has 90 hrefs on it.

include.js

YUI.add('davglass', function(Y) {
     Y.davglass = function() {
        var a = Y.all('a').size();
        Y.log('This page has ' + a + ' hrefs on it.');
     }
});