JavaScript 構造函數與原型鏈

構造函數、原型鏈：

function Person(name, age, job) {
			    this.name = name;
			    this.age = age;
			    this.job = job;
//			    this.sayName = function () {
//			        console.log(this.name);
//			    };
				Person.prototype.sayName = function () {
			        console.log(this.name);
			    }
			}
			
			var p1 = new Person('Jesse', 18, 'coder');
			var p2 = new Person('Carol', 17, 'designer');
			console.log(p1.sayName==p2.sayName);   //this.sayName = function () {}     // false
//			console.log(p1.sayName==p2.sayName);   //Person.prototype.sayName = function () {}     // true
			console.log(p1.sayName());        //console.log(name); // Carol
//			console.log(p1.sayName());        //console.log(this.name); // Jesse