text: 'use strict';
  
  /*
   * Create a constant variable named `arr` that is an array containing the values 4 and '2'
   *
   * @notions Data-Structures
   */
  
  // Your code:
  
  const arr = [4, '2'];
  
  
  //* Begin of tests
  const assert = require('assert');
  
  assert.strictEqual(Array.isArray(arr), true);
  assert.strictEqual(arr[0], 4);
  assert.strictEqual(arr[1], '2');
  assert.strictEqual(arr.length, 2);
  // End of tests */
  