Question

如何创建名为＆＃34; joe＆＃34;的经理对象。并创造下属＆＃34; John＆＃34;并将薪水添加到约翰。

实施例。 var result = new Manager（＆＃34; Joe＆＃34;）。getSubordinate（＆＃34; John＆＃34;）。addSalary（10000）;

function Manager(name){
    this.name = name;
    this.getSubordinate = function(submane){

        return submane;
    }
}
var result = new Manager('Joe');

到目前为止我能写下来。

Answer 1

如果你想链接你需要的函数来返回对象，比如你有一个类经理和一个纵坐标：

function Manager(name){
    this.name = name;

    this.subordinate = {John : new Subordinate('John')};

    this.getSubordinate = function getSubordinate(subName){
        return this.subordinate[subName];
    };
}

function Subordinate(name){
    this.name = name;

    this.salary = 0;

    this.addSalary = function addSalary(salary){
        this.salary = salary;
        return salary;
    };
}

var result = new Manager('Joe').getSubordinate("John").addSalary(10000);

但我认为你想要一个Manager对象，所以我建议使用这种方式

function Manager(name){
    var self = this;

    this.name = name;

    this.subordinate = {John : new Subordinate('John')};

    this.getSubordinate = function getSubordinate(subName){
        return this.subordinate[subName];
    };

    this.addSalaryToSubordinate = function addSalaryToSubordinate(subName, salary){
        self.getSubordinate(subName).addSalary(salary);
        return self;
    };
}

function Subordinate(name){
    this.name = name;

    this.salary = 0;

    this.addSalary = function addSalary(salary){
        this.salary = salary;
        return salary;
    };
}

var result = new Manager('Joe').addSalaryToSubordinate ("John", 10000);

如何编写JavaScript原型链

1 个答案: