String Methods

Question 1

charAt()

Answer 1

Returns the character at the specified index

Question 2

charCodeAt()

Answer 2

Returns the Unicode of the character at the specified index

Question 3

concat()

Answer 3

Joins two or more strings and returns a copy of the joined strings

Question 4

fromCharCode()

Answer 4

Converts Unicode values to characters

Question 5

indexOf()

Answer 5

Returns the position of the first found occurrence of a specified value in a string

Question 6

lastIndexOf()

Answer 6

Returns the position of the last found occurrence of a specified value in a string

Question 7

match()

Answer 7

Searches for a match between a regular expression and a string, and returns the matches

Question 8

replace()

Answer 8

Searches for a match between a substring (or regular expression) and a string, and replaces the matched substring with a new substring

Question 9

search()

Answer 9

Searches for a match between a regular expression and a string, and returns the position of the match

Question 10

slice()

Answer 10

Extracts a part of a string and returns a new string

Question 11

split()

Answer 11

Splits a string into an array of substrings

Question 12

substr()

Answer 12

Extracts the characters from a string, beginning at a specified start position, and through the specified number of characters

Question 13

substring()

Answer 13

Extracts the characters from a string, between two specified indices

Question 14

toLowerCase()

Answer 14

Converts a string to lowercase letters

Question 15

toUpperCase()

Answer 15

Converts a string to uppercase letters

Question 16

valueOf()

Answer 16

Returns the primitive value of a String object