Method sort

lib/internal/url.js:649–696

()

  }

  sort() {
    if (typeof this !== 'object' || this === null || !(#searchParams in this))
      throw new ERR_INVALID_THIS('URLSearchParams');

    const a = this.#searchParams;
    const len = a.length;

    if (len <= 2) {
      // Nothing needs to be done.
    } else if (len < 100) {
      // 100 is found through testing.
      // Simple stable in-place insertion sort
      // Derived from v8/src/js/array.js
      for (let i = 2; i < len; i += 2) {
        const curKey = a[i];
        const curVal = a[i + 1];
        let j;
        for (j = i - 2; j >= 0; j -= 2) {
          if (a[j] > curKey) {
            a[j + 2] = a[j];
            a[j + 3] = a[j + 1];
          } else {
            break;
          }
        }
        a[j + 2] = curKey;
        a[j + 3] = curVal;
      }
    } else {
      // Bottom-up iterative stable merge sort
      const lBuffer = new Array(len);
      const rBuffer = new Array(len);
      for (let step = 2; step < len; step *= 2) {
        for (let start = 0; start < len - 2; start += 2 * step) {
          const mid = start + step;
          let end = mid + step;
          end = end < len ? end : len;
          if (mid > end)
            continue;
          merge(a, start, mid, end, lBuffer, rBuffer);
        }
      }
    }

    if (this.#context) {
      setURLSearchParamsModified(this.#context);
    }
  }

  // https://heycam.github.io/webidl/#es-iterators
  // Define entries here rather than [Symbol.iterator] as the function name