javascript 调用方法有问题

Question

我想从 car 构造函数访问 Vehicles 的详细信息方法，并希望通过调用而不继承 Car 中的 Vehicles 来打印名称和类型。这是我的代码：

function Vehicles(name, type) {
  // console.log(name);
  this.name = name;
  this.type = type;
  this.getDetails = function() {
    console.log(this.name, this.type);
  }
}

function car(name, type) {
  this.NewVehicles = new Vehicles(name, type);
  // this.details = this.call(this.NewVehicles.getDetails);
  this.details = this.NewVehicles.call(this.getDetails);
}

const newCar = new car();
console.log(newCar.details("ss", "zxxzx"));

但我收到以下错误：

this.details = this.NewVehicles.call(this.getDetails);                             ^

TypeError: this.NewVehicles.call is not a function
    at new car (/temp/file.js:16:35)
    at Object.<anonymous> (/temp/file.js:19:16)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)

调用newCar.details和call方法时，有些概念错误，有些错误。如果您能帮助解决问题，我们将不胜感激。

Answer 1

call() 的第一个参数应该是“调用 func 时用作此值的值”。参见：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call

至于继承：

function Vehicle(name, type) {
  this.name = name;
  this.type = type;
  this.getDetails = function() {
    console.log(this.name, this.type);
  }
}

function Car(name, type) {
    Vehicle.call(this, name, type);
}

const myCar = new Car("foo", "bar");

myCar.getDetails();

应阅读：https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/Inheritance

javascript 调用方法有问题

Issue with javascript call method

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