Javascript 如何一次从同一个构造函数调用所有对象？

我是javascript新手。我想一次过滤所有Employee对象，并返回等于或超过300 salary的对象的名称。然后我想将这些结果存储到一个数组中。我不知道如何在所有对象上调用方法

filterSalaries（）

。请帮帮我

var EmployeeBlueprint = {

    all_info: function () {
        console.log("Employee: " + this.name + " has a salary of $" + this.salary + ".");
    },
    isMale: function() { return this.gender == "Male"; },
    isFemale: function() { return this.gender == "Female"; },

    filterSalaries: function() {
        if (this.salary >= 300) {
            return this.name;
        }
    }
};

function Employee (name, salary, gender) {
    this.name = name;
    this.salary = salary;
    this.gender = gender;
};

Employee.prototype = EmployeeBlueprint;

var Matt = new Employee("Matt", 100, "Male");
var Alex = new Employee("Alex", 200, "Male");
var Zack = new Employee("Zack", 300, "Male");
var Mark = new Employee("Mark", 400, "Male");
var Rick = new Employee("Rick", 500, "Male");

---

首先去掉这些变量并将它们存储在数组中

var emps = [
   new Employee("Matt", 100, "Male"),
   new Employee("Alex", 200, "Male"),
   new Employee("Zack", 300, "Male"),
   new Employee("Mark", 400, "Male"),
   new Employee("Rick", 500, "Male")
];

然后对数组进行

.filter（）

处理，以获得简化集和设置为名称的

.map（）

var low_salary_names = emps.filter(function(emp) {
    return emp.salary <= 300;
}).map(function(emp) {
    return emp.name;
});

var low\u salary\u names=emp.filter（函数（emp））{
返回emp.salary通常处理此类问题的方法是将所有对象放入一个数组（
var allEmpoyees=[Mark，Alex，…]
），然后过滤该数组以获得结果数组。