JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Solution II - How to Repeat a String in JavaScrip
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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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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main challenge when using an array to repeat a string?
Arrays are too slow for this operation.
The repeated elements need to be returned as a string, not an array.
Arrays cannot store strings.
Strings cannot be converted to arrays.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can the join method be useful in this context?
It can reverse the elements of an array.
It can convert an array into a string.
It can split a string into an array.
It can sort the elements of an array.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the for loop in the final solution?
To sort the elements of the array.
To iterate over the string and populate the array.
To find the length of the string.
To reverse the string.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it unnecessary to open up quotations in the join method?
Because it only works with empty arrays.
Because it does not require separators for characters.
Because it automatically separates characters.
Because it only works with numbers.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final output of the implemented solution?
A single string with repeated content.
A boolean indicating success.
A number representing the length of the string.
An array of repeated strings.
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