JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - The Remainder Operator in JavaScript - II

The video tutorial explains the concept of remainders in division, using group analogy to illustrate how remainders work. It highlights the importance of finding the maximum number of groups and the remainder left. The tutorial also discusses practical applications of remainders in programming, such as checking if numbers are even or odd. The video concludes with a summary and introduces a follow-up exercise.

What is the remainder when 7 is divided into groups of 3?

• 2

• 3

• 4

• 1

Why is understanding remainders important in programming?

• They are used to calculate derivatives.

• They are essential for calculus.

• They are used in randomization and setting ranges.

• They help in solving algebraic equations.

How can you determine if a number is even using remainders?

• Divide by 3 and check if the remainder is 1.

• Divide by 2 and check if the remainder is 0.

• Divide by 5 and check if the remainder is 2.

• Divide by 4 and check if the remainder is 3.

In the coding example, what is the remainder when 14 is divided by 2?

• 3

• 1

• 2

• 0

What does a remainder of 1 indicate when checking if a number is odd?

• The number is a prime number.

• The number is even.

• The number is divisible by 4.

• The number is odd.