Method deleteByIndex

packages/core/src/utils/DisorderedArray.ts:83–100

* Delete the element at the specified index. * @param index - The index of the element to be deleted * @returns The replaced item is used to reset its index

(index: number)

   * @returns The replaced item is used to reset its index
   */
  deleteByIndex(index: number): T {
    const elements = this._elements;
    let end: T;
    if (this._loopCounter > 0) {
      this._elements[index] = null;
      this._blankCount++;
    } else {
      const endIndex = this.length - 1;
      if (index !== endIndex) {
        end = elements[endIndex];
        elements[index] = end;
      }
      elements[endIndex] = null;
      this.length--;
    }

    return end;
  }

  /**
   * Loop through all elements.