如何編寫JavaScript原型鏈

Question

如何使用名稱「joe」創建Manager對象並創建下屬「John」並向John添加Salary。

Ex。 var result = new Manager（「Joe」）。getSubordinate（「John」）。addSalary（10000）;

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

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

我能寫下來，到目前爲止。

Answer 1

，如果你想鏈的功能，你需要返回一樣，如果你有一個類經理和縱座標的一個對象：

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); 

，但我想你想作爲結果的管理對象，因此我建議使用這種方式

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);