摘要：
Although using the object constructor or an object literal are convenient ways to create single objects, there is an obvious downside: creating mult... 阅读全文
摘要：
Prototype Chaining Recall the relationship between consructors, prototypes and instances: each constructor has a prototype object that points back to... 阅读全文
摘要：
ECMAScript variables may contains two different types of data: primitive values and reference values. Primitive values are simple atomic pieces of d... 阅读全文