Learn JavaScript from Scratch JavaScript for Everyone - JavaScript Arrays

The video tutorial introduces arrays in JavaScript, explaining their structure and basic syntax. It covers how arrays are objects with various functions, such as concat and push, and demonstrates how to add and remove items using push and pop methods. The tutorial emphasizes understanding array indices and provides a simple approach to manipulating arrays.

What is an array in JavaScript?

• A string of characters

• A list of elements

• A mathematical operation

• A type of function

Which of the following is a correct way to declare an array in JavaScript?

• let arr = [1, 2, 3];

• let arr = (1, 2, 3);

• let arr = <1, 2, 3>;

• let arr = {1, 2, 3};

How can you add a new item to the end of an array in JavaScript?

• Using the add method

• Using the append method

• Using the push method

• Using the insert method

What does the pop method do in an array?

• Adds a new item to the end of the array

• Removes the last item of the array

• Removes the first item of the array

• Adds a new item to the start of the array

If an array has 7 items, what will be the index of the last item?

• 5

• 8

• 7

• 6