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 'hello'.toUpperCase().toLowerCase() in JavaScript?
A). 'hello'
B). 'HELLO'
C). 'Hello'
D). 'hello'
What is the result of '5' + 3 in JavaScript?
A). '53'
B). 8
C). 53
D). '5 3'
What does the .replace() method do in JavaScript?
A). Replaces a specified value with another value
B). Removes a substring
C). Splits a string into an array
D). Joins two or more strings
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 .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 'apple'.charAt(2) in JavaScript?
A). 'p'
B). 'l'
C). 'a'
D). 'pp'
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
How do you concatenate two strings in JavaScript?
A). string1.concat(string2)
B). string1 + string2
C). string1.join(string2)
D). string1.combine(string2)
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)