What is the result of 'hello'.toUpperCase().toLowerCase() in JavaScript?
A). 'hello'
B). 'HELLO'
C). 'Hello'
D). 'hello'
What is the result of 'Hello'.substring(0, 3) in JavaScript?
A). 'Hell'
B). 'Hello'
C). 'o'
D). 'llo'
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)
What does the .toLowerCase() method do in JavaScript?
A). Converts all characters to lowercase
B). Converts all characters to uppercase
C). Trims leading and trailing whitespace
D). Converts string to a boolean
What does the + operator do with strings?
A). Concatenates strings
B). Compares strings
C). Trims strings
D). Converts strings to uppercase
What is the result of '5' + 3 in JavaScript?
A). '53'
B). 8
C). 53
D). '5 3'
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 is the result of 'apple'.charAt(2) in JavaScript?
A). 'p'
B). 'l'
C). 'a'
D). 'pp'
How do you check if a string starts with a specific substring in JavaScript?
A). string.startsWith(substring)
B). string.startsWithWith(substring)
C). string.beginsWith(substring)
D). string.starts(substring)
How do you concatenate two strings in JavaScript?
A). string1.concat(string2)
B). string1 + string2
C). string1.join(string2)
D). string1.combine(string2)