Modern JavaScript from the Beginning - Second Edition - Reverse String Algorithm
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 the initial tests in the reverse string project?
To ensure the function is optimized
To verify the function's type and return value
To check if the function is named correctly
To test the function with multiple data types
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a test case mentioned for the reverse string function?
Reversing a single word
Reversing a sentence with multiple words
Reversing a palindrome
Reversing a number
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method is used in the first solution to convert a string into an array?
join()
split()
filter()
map()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first solution, which method is used to reverse the array?
concat()
reduce()
sort()
reverse()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'for-of' loop in the second solution?
To sort the characters of the string
To find the length of the string
To loop through each character of the string
To iterate over an array of numbers
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is highlighted in the third solution for reversing a string?
forEach()
reduce()
filter()
map()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial value used in the reduce method for the third solution?
An empty array
A space character
An empty string
A null value
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