如何创建自定义对象或集合的副本？

const originalArray = [1, 2, 3, 4, 5];
const copiedArray = originalArray.slice();

const originalObject = { a: 1, b: 2, c: 3 };
const copiedObject = Object.assign({}, originalObject);

const originalSet = new Set([1, 2, 3, 4, 5]);
const copiedSet = new Set(originalSet);

class CustomObject {
  constructor(a, b, c) {
    this.a = a;
    this.b = b;
    this.c = c;
  }
}

const originalCustomObject = new CustomObject(1, 2, 3);
const copiedCustomObject = JSON.parse(JSON.stringify(originalCustomObject));