Understanding Arrays and Loops in JavaScript

What is the index of the first element in an array in most programming languages?

• 1

• 0

• -1

• 2

In JavaScript, which method is used to add an element to the end of an array?

• add()

• append()

• push()

• insert()

Consider the following JavaScript code: `var numbers = [1, 2, 3, 4]; console.log(numbers[4]);`. What will be the output?

• 4

• 3

• undefined

• Error

Which of the following statements correctly initializes an empty array in JavaScript?

• `var myArray = {};`

• `var myArray = [];`

• `var myArray = new Object();`

• `var myArray = new Array();`

What will be the result of the following JavaScript expression: `'5' == 5`?

• true

• false

• undefined

• Error

Given the array `var fruits = ['apple', 'banana', 'cherry'];`, write a JavaScript `for` loop to print each fruit in the array.

• `for (var i = 0; i < fruits.length; i++) { console.log(fruits[i]); }`

• `for (var i = 1; i <= fruits.length; i++) { console.log(fruits[i]); }`

• `for (var i = 0; i <= fruits.length; i++) { console.log(fruits[i]); }`

• `for (var i = 1; i < fruits.length; i++) { console.log(fruits[i]); }`

Which of the following operators is used to check strict equality in JavaScript?

• ==

• ===

• !=

• !==