Modern Web Design with HTML5, CSS3, and JavaScript - Learning about JavaScript String Methods - Part 2.
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Information Technology (IT), Architecture, Social Studies, Other
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between the slice and substring methods?
Both can use negative indices.
Neither can use negative indices.
Slice can use negative indices, substring cannot.
Substring can use negative indices, slice cannot.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method allows you to specify the number of characters to return instead of an end position?
Slice
Substr
Replace
Substring
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the replace method do in JavaScript?
It converts a string to uppercase.
It removes a specified part of a string.
It finds a pattern in a string and replaces it with new content.
It splits a string into an array.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you replace all instances of a pattern in a string?
Use the substring method.
Use the replace method with the 'g' flag in regex.
Use the slice method.
Use the replace method with a loop.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the includes method return if a string contains the specified substring?
A boolean value
The index of the substring
An error message
The length of the substring
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What value does indexOf return if the substring is not found?
undefined
0
-1
null
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to find the last occurrence of a substring?
lastIndexOf
includes
substring
indexOf
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