javascript - JavaScript: Is it possible to add arguments to a class extension?

Question

I am using Toxiclibs Verlet physics engine in JavaScript, and I would like to extend the VerletParticle2D class to create a custom object. It seems easy enough to add parameters and methods, but I wonder if my new class can have additional arguments. For example, VerletParticle2D takes one argument, which is a position vector.

Could I simply call the the new class with an additional argument, and pass it two vectors, and then define how the new argument is used in the added methods?

标签： javascriptclassinheritanceconstructorarguments

Answer 1

你当然可以像这样扩展一个类：

class BaseClass {
  constructor(vector1) {
    this.vector1 = vector1;
  }
}

class MyClass extends BaseClass {
  constructor(vector1, vector2) {
    super(vector1);
    this.vector2 = vector2;
  }
}

然后用 . 创建一个新实例new MyClass(vector1, vector2)。