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)
How do you convert a string to uppercase in JavaScript?
A). string.toUpperCase()
B). string.uppercase()
C). string.toUppercase()
D). string.upperCase()
Which method can you use to check if a string includes a specific substring in JavaScript?
A). .includes()
B). .contains()
C). .hasSubstring()
D). .indexOf()
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 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
What does the + operator do with strings?
A). Concatenates strings
B). Compares strings
C). Trims strings
D). Converts strings to uppercase
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 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 find the length of a string in JavaScript?
A). string.length
B). string.size
C). string.length()
D). lengthOf(string)