text: import {
    NotImplementedError
  } from '../extensions/index.js';
  
  /**
   * Implement class DepthCalculator with method calculateDepth
   * that calculates deoth of nested array
   * 
   * @example
   * 
   * const depthCalc = new DepthCalculator();
   * depthCalc.calculateDepth([1, 2, 3, 4, 5]) => 1
   * depthCalc.calculateDepth([1, 2, 3, [4, 5]]) => 2
   * depthCalc.calculateDepth([[[]]]) => 3
   *
   */
  export default class DepthCalculator {
    calculateDepth(arr) {
      let depth = 0;
      for (let i = 0; i < arr.length; i++) {
        if (Array.isArray(arr[i])) {
          depth = this.calculateDepth(arr.flat());
          depth++;
          return depth;
        }
      }
  
      return depth + 1;
    }
  }