JS补记

两种实现继承的方式

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   function Car() { var self = this; self.type = "Car" self.go = function() { console.log("Going..."); }; }; Toyota = function() {}; Toyota.prototype = new Car(); Toyota.prototype.constructor = function() { var self = this; self.type = "Toyota"; self.go = function() { console.log("A Toyota car is going..."); } }; Toyota.prototype.isJapaneseCar = true; var t = new Toyota(); console.log(t instanceof Toyota); console.log(t instanceof Car);

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   var Car = Class.create({ initialize: function() { this.type = "Car"; }, go: function() { console.log("Going..."); } }); var Toyota = Class.create(Car, { initialize: function() { this.type = "Toyota"; this.isJapaneseCar = true; }, go: function() { console.log("A Toyota car is going..."); } });

   • 关于父类调用

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     var Toyota = Class.create(Car, { initialize: function() { this.type = "Toyota"; this.isJapaneseCar = true; }, go: function($super) { $super(); console.log("A Toyota car is going..."); } });

选择器

链表实现

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var Node = Class.create({
initialize: function (val) {
this.value = val;
this.next = null;
},
addChild: function(node) {
this.next = node;
}
});
var LinkedList = Class.create({
initialize: function () {
this.root = new Node(null);
this.size = 0;
},
add: function (object) {
obj = this.root
while (obj.next!= null) {
obj = obj.next;
}
obj.next = new Node(object)
}
});