摘要:        
每个函数内部有2个特殊对象(this、arguments)、每个函数都包含2个属性(length、prototype)、每个函数都包含2个非继承而来的方法(apply、call)    阅读全文
posted @ 2012-06-05 11:23
WFKeypoints
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摘要:        
function inheritPrototype(subType, superType){
            var prototype = object(superType.prototype);   //create object
            prototype.constructor = subType;               //augment object
            subType.prototype = prototype;                 //assign object
        }    阅读全文
posted @ 2012-06-05 09:49
WFKeypoints
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摘要:        
function Person(name, age, job){
        
            //properties
            this.name = name;
            this.age = age;
            this.job = job;
            
            //methods
            if (typeof this.sayName != "function"){
            
                Person.prototype.sayName = function(){
                    alert(this.name);
                };
                
            }
        }    阅读全文
posted @ 2012-06-05 09:43
WFKeypoints
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