JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Example 1 - What Is Splice in JavaScript

The video tutorial explains how to manipulate arrays in JavaScript using the splice method. It begins with an example of an array containing colors and demonstrates how to remove unwanted colors using splice. The tutorial covers the arguments required for the splice method, including the starting position and the number of elements to remove. By the end, the array is updated to contain only the desired colors, suitable for a toy website for kids.

What is the purpose of the colors array in the code example?

• To store a list of numbers

• To store a group of shapes

• To store a group of colors

• To store a list of names

Why do we want to remove brown and black from the colors array?

• They are not in alphabetical order

• They are not primary colors

• They are too similar to each other

• They are not vibrant enough for a toy website

What is a more efficient method than using pop twice to remove elements from an array?

• Using the unshift method

• Using the shift method

• Using the push method

• Using the splice method

What does the first argument in the splice method specify?

• The ending position for removal

• The number of elements to add

• The color to be removed

• The starting position for removal

How many elements are removed from the array when using splice to remove brown and black?

• One

• Four

• Two

• Three