JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - For Loop (in and of) / 019-1
Interactive Video
•
Information Technology (IT), Architecture
•
University
•
Practice Problem
•
Hard
Wayground Content
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the three main components of a basic for loop?
Declare, execute, finish
Begin, check, end
Initialization, condition, increment/decrement
Start, stop, repeat
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which keyword is used in a for loop to directly access elements of an array?
with
in
of
by
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'for...in' loop provide access to when iterating over an array?
Array indices
Array methods
Array elements
Array length
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using 'for...in' with an object, what does it iterate over?
Object values
Object keys
Object methods
Object properties
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which loop is suitable for iterating over a string to access each character?
do...while
while
for...of
for...in
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between 'for...in' and 'for...of'?
'for...in' accesses keys, 'for...of' accesses values directly
'for...in' is faster than 'for...of'
'for...in' is used for objects, 'for...of' is used for arrays
'for...in' accesses values directly, 'for...of' accesses keys
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which loop would you use to skip over empty values in an array?
do...while
for...in
for...of
while
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