var phantom = this.phantom || {exit: function () {}}; console.log('bind:', typeof Function.prototype.bind); console.log('9 === parseInt("09"):', 9 === parseInt('09')); console.log('map:', typeof Array.prototype.map); console.log('reduce:', typeof Array.prototype.reduce); console.log('filter:', typeof Array.prototype.filter); console.log('Object.create:', typeof Object.create); phantom.exit();