コンソールを用いたワンライナー TIPS(IE11) ref: http://qiita.com/juner/items/d64c4e2cad1c9c2674bc

filterTest.js

[].filter.call($$(selector),function(element){ return element.textContent.indexOf("hoge") != -1; });

forEachTest.js

[].forEach.call($$(selector),function(element){ console.dir(element);});

mapTest.js

["id1","id2","id3"].map(function(id){ return document.getElementById(id); });

reduceTest.js

[].map.call($$(selector),function(element){ return ["attrName1","attrName2"].reduce(function(obj,name){ return obj[name] = element.getAttribute(name),obj; },{}); });