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Push Method

Push Method​

The push method adds an item to the end of the array. This is similar to how the push method works in JavaScript's native arrays.

How It Works​

  1. Initialization: Create an instance of the MyArray class.
  2. Adding Elements: Use the push method to add new elements to the end of the array.
  3. Array Structure: Each new element increases the length of the array.
info

Using the push method, we can dynamically grow our array by adding elements to its end.

Implementation Logic​

The push method assigns the new item to the key corresponding to the current length of the array in the data object. After adding the item, the length of the array is incremented by 1.

Code Example​

class MyArray {
  constructor() {
    this.length = 0;
    this.data = {};
  }

  /**
   * Adds a new element to the end of the array.
   * @param {*} item - The element to add to the array.
   * @returns {number} - The new length of the array.
   */
  push(item) {
    this.data[this.length] = item;
    this.length++;
    return this.length;
  }
}

const myArray = new MyArray();
myArray.push("apple"); // Adding "apple" to the array
myArray.push("banana"); // Adding "banana" to the array
console.log(myArray); // Displaying the array's contents

Output​

MyArray { length: 2, data: { '0': 'apple', '1': 'banana' } }