HTML CSS and JavaScript for Beginners - A Web Design Course - JavaScript Loops
Interactive Video
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of using loops in programming?
To make code run slower
To avoid using variables
To execute a block of code multiple times
To create infinite loops
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a for loop, what is typically used to control the number of iterations?
A constant
A variable
A condition
A function
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When iterating over an array with a for loop, what is a common starting index?
10
0
1
Array length
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between iterating over arrays and objects?
Arrays have keys, objects do not
Objects have keys, arrays do not
Both have keys
Neither have keys
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which loop guarantees that the code block will execute at least once?
Infinite loop
Do-while loop
While loop
For loop
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if a loop does not have a proper exit condition?
The loop will cause an error
The loop will run once
The loop will not run at all
The loop will run indefinitely
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which loop type is most commonly used for iterating a known number of times?
Recursive loop
Do-while loop
While loop
For loop
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