摘要：
Currently, the server.js is going way too long. In the real world application, it is likely that we are going to deal with more routers, whichi means ... 阅读全文
摘要：
For server.js, we update the code by using route instance. By using this, we can remove some duplicate code.For example:app.get('/people', function(re... 阅读全文
摘要：
In ES5, we have for ... in:var phones = ["iPhone", "Nexus", "Nokia"];for(i in phones){ console.log(phones[i]);}//iPhone//Nexus//NokiaWhat we get fr... 阅读全文
摘要：
ES6 provides Map, it is a set of k-v pair. Key can be number, string, object, function and even undefined.var m = new Map();Methods:1. set(k,v)m.set("... 阅读全文
摘要：
Es6 provides "Set", it likes array but the data inside should be unqiue."Set" is a construct function, you should call:var s = new Set();Methods:1.add... 阅读全文