javascript继承之原型式继承(四)

javascript之父道格拉斯在2006年给出了这样一串代码,来实现继承.

function object(o) {
            function F() { }
            F.prototype = o;
            return new F();
        }

下面来看看这个函数是如何实现继承的.

var Human = {
            name: "guo",
            colors: ["red","black"]
        }
        var one = object(Human);
        one.colors.push("yellow");

        var two = object(Human);
        two.colors.push("green");

        alert(two.colors); //red,black,yellow,green

在ECMAScript5中,这个方法得到了封装.Object.create();

var Human = {
            name: "guo",
            colors: ["red", "black"]
        }
        var one = Object.create(Human);
        one.colors.push("yellow");
        var two = Object.create(Human);
        two.colors.push("green");
        alert(two.colors);// red,black,yellow,green