Online Coding Lessons JavaScript Coding for Kids 3

Question 1

Which loop is best for repeating an action a set number of times, like 10 times?

Accepted Answer

for loop

Answer

A for loop repeats code a chosen number of times.

Question 2

What does the length property tell you about an array?

Accepted Answer

How many items it has

Answer

The length property gives the number of items in an array.

Question 3

Which code adds the item "cat" to the end of an array called pets?

Accepted Answer

pets.push("cat")

Answer

The push() method adds a new item to the end of an array.

Question 4

What is the first index number of any array in JavaScript?

Accepted Answer

0

Answer

Arrays start counting positions at 0, not 1.

Question 5

What does an if statement let your program do?

Accepted Answer

Make a decision

Answer

An if statement runs code only when a condition is true.

Online Coding Lessons Practice Test