js面向对象

今天看了一些js面向对象的视频，js做的事真的好多

1、// 模拟重载

2、// 调用子类的方法

3、// 链式调用

4、// 抽象类

代码奉上

// 模拟重载
function Person() {
var args = arguments;
if (typeof args[0] === 'object' && args[0]) {
if (args[0].name) {
this.name = args[0].name;
}
if (args[0].age) {
this.age = args[0].age;
}
} else {
if (args[0]) {
this.name = args[0];
}
if (args[1]) {
this.age = args[1];
}
}
}

Person.prototype.toString = function() {
var str = 'name=' + this.name + ',age=' + this.age;
console.log(str)
return str;
}

var bosn = new Person('Bosn', 27);
bosn.toString();
var bosnO = new Person({
name: 'bosnO',
age: 38
});
bosnO.toString();

// 调用子类的方法
function Person(name) {
this.name = name;
}

function Student(name, className) {
this.className = className;
Person.call(this, name);
}
var bosn = new Student('Bosn', 'sw2');
Person.prototype.init = function() {

};
Student.prototype.init = function() {
// do sth
Person.prototype.init.apply(this, arguments);
}

// 链式调用
function classManager() {
//
}
classManager.prototype.addClass = function(str) {
console.log('Class:' + str + 'added');
return this;
};
classManager.addClass('classA').addClass('classB').addClass('classC');

// 抽象类
function DetectorBase() {
throw new Error('Abstract class can not be invoked directly!');
}
DetectorBase.detect = function() {
console.log('Detection starting...');
};
DetectorBase.stop = function() {
console.log('Detector stopping...');
};
DetectorBase.init = function() {
throw new Error('Error');
};

function LinkDetector() {
//
}
LinkDetector.prototype = Object.create(Detector.prototype);
LinkDetector.prototype.constructor = LinkDetector;
// add methods to LinkDetector...