sfdc-lightning-p1-03.js

// utils.resource
window.utils = ({
    SHOW_LOG: true, // Set to false in production

    log:   function() { },
    warn:  function() { },
    error: function() { },

    logInit: function () {
        if(this.SHOW_LOG) {
            this.log = console.log.bind(console);
            this.warn = console.warn.bind(console);
            this.error = console.error.bind(console);
        }
    },
});

// Initialize our log based on the log level
window.utils.logInit();

// This is also a good place to put polyfills so they load automatically when the utils are imported.
// e.x.: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find