Class URLSearchParamsIterator

lib/internal/url.js:224–301

let setURLSearchParams;

class URLSearchParamsIterator {
  #target;
  #kind;
  #index;

  // https://heycam.github.io/webidl/#dfn-default-iterator-object
  constructor(target, kind) {
    this.#target = target;
    this.#kind = kind;
    this.#index = 0;
  }

  next() {
    if (typeof this !== 'object' || this === null || !(#target in this))
      throw new ERR_INVALID_THIS('URLSearchParamsIterator');

    const index = this.#index;
    const values = getURLSearchParamsList(this.#target);
    const len = values.length;
    if (index >= len) {
      return {
        done: true,
        value: undefined,
      };
    }

    const name = values[index];
    const value = values[index + 1];
    this.#index = index + 2;

    let result;
    if (this.#kind === 'key') {
      result = name;
    } else if (this.#kind === 'value') {
      result = value;
    } else {
      result = [name, value];
    }

    return {
      done: false,
      value: result,
    };
  }

  [inspect.custom](recurseTimes, ctx) {
    if (!this || typeof this !== 'object' || !(#target in this))
      throw new ERR_INVALID_THIS('URLSearchParamsIterator');

    if (typeof recurseTimes === 'number' && recurseTimes < 0)
      return ctx.stylize('[Object]', 'special');

    const innerOpts = { ...ctx };
    if (recurseTimes !== null) {
      innerOpts.depth = recurseTimes - 1;
    }
    const index = this.#index;
    const values = getURLSearchParamsList(this.#target);