How do you trim whitespace from the beginning and end of a string in JavaScript?
A). string.trim()
B). trimString(string)
C). string.strip()
D). trim(string)
How do you get the index of the first occurrence of a specified substring in a string?
A). string.indexOf(substring)
B). string.index(substring)
C). substring.positionIn(string)
D). string.search(substring)
How do you extract parts of a string and join them together in JavaScript?
A). string.slice(start, end)
B). string.extract(start, end)
C). string.split(start, end)
D). string.join(start, end)
What is the correct way to compare two strings in JavaScript for equality?
A). string1 == string2
B). string1.compare(string2)
C). string1.equals(string2)
D). string1 === string2
What does the .substring() method do in JavaScript?
A). Extracts characters between two indices
B). Trims whitespace from the beginning
C). Converts string to an array
D). Compares two strings
What is the result of 'apple'.charAt(2) in JavaScript?
A). 'p'
B). 'l'
C). 'a'
D). 'pp'
What does the .concat() method do in JavaScript?
A). Concatenates two or more strings
B). Compares two strings
C). Converts a string to lowercase
D). Finds a substring in a string
What is the result of 'Hello'.substring(0, 3) in JavaScript?
A). 'Hell'
B). 'Hello'
C). 'o'
D). 'llo'
What is the result of '5' + 3 in JavaScript?
A). '53'
B). 8
C). 53
D). '5 3'
What does the + operator do with strings?
A). Concatenates strings
B). Compares strings
C). Trims strings
D). Converts strings to uppercase