Modern JavaScript from the Beginning - Second Edition - Basic Array Methods

The video tutorial covers array basics in JavaScript, focusing on methods to manipulate and retrieve data from arrays. It explains how to use methods like push, pop, unshift, shift, includes, indexOf, slice, and splice. The tutorial also demonstrates how to chain methods for more complex operations, providing a comprehensive understanding of array manipulation and data retrieval.

Which method would you use to add an element to the end of an array?

• pop

• push

• unshift

• shift

What does the pop method do to an array?

• Adds an element to the start

• Removes the first element

• Adds an element to the end

• Removes the last element

How can you check if an array contains a specific value?

• splice

• indexOf

• includes

• slice

What does the indexOf method return if the value is not found in the array?

• 0

• -1

• null

• undefined

Which method allows you to extract a portion of an array without modifying the original array?

• splice

• pop

• push

• slice

What is the main difference between slice and splice methods?

• Neither modifies the array

• Both modify the array

• Splice modifies the array, slice does not

• Slice modifies the array, splice does not

How can you remove a single element from an array using splice?

• Specify the index and number of elements to remove

• Use the pop method

• Use the shift method

• Specify only the index

What is method chaining?

• Executing multiple methods in a single line

• Combining arrays

• Creating nested arrays

• Using a method inside another method

Which of the following is NOT a method that can be chained?

• reverse

• charAt

• push

• toString

What topics will be covered in the next video?

• Nesting and concatenation

• Advanced sorting

• Error handling

• Array basics