charAt()

Returns a character at a specified position inside a string

charCodeAt()

Gives you the unicode of character at that position

concat()

Concatenates (joins) two or more strings into one

fromCharCode()

Returns a string created from the specified sequence of UTF-16 code units

indexOf()

Provides the position of the first occurrence of a specified text within a string

lastIndexOf()

Same as indexOf() but with the last occurrence, searching backwards

match()

Retrieves the matches of a string against a search pattern

replace()

Find and replace specific text in a string

search()

Executes a search for a matching text and returns its position

slice()

Extracts a section of a string and returns it as a new string

split()

Splits a string object into an array of strings at a specified position

substr()

Similar to slice() but extracts a substring depended on a specified number of characters

substring()

Also similar to slice() but can’t accept negative indices

toLowerCase()

Convert strings to lowercase

toUpperCase()

Convert strings to uppercase

valueOf()

Returns the primitive value (that has no properties or methods) of a string object