The util module is improve more methods to check type and some assist methods for nodeJs
dependencies:
npm install vukoa-util
var util = require('vukoa-util');
var what = util.isWhat;
what.isArray([1]); // => true
what.isNumber(1);//=> true
what.isGeneratorFunction(function * () {}); // => true
what.islong(Math.pow(2, 33)); // => true
util.toPinyin('测试数据'); //=> ce shi shu ju