Category Subject Sinopsys Description Example
Property length Reflects the number oof the string
charAt(x) Returns the character at the 'x' position within the string
charCodeAt(x) Returns the Unicode value of the character at position 'x' within the string.
fromCharCode(c1, c2,...) Returns a string created by using the specified sequence of Unicode values (arguments c1, c2 etc). Method of String object, not String instance. String.fromCharCode('a')
concat(v1, v2,...) Combines one or more strings (arguments v1, v2 etc) into the existing one and returns the combined string. Original string is not modified
indexOf(substr, [start]) Searches and (if found) returns the index number of the searched character or substring within the string. If not found, -1 is returned. 'Start' is an optional argument specifying the position within string to begin the search. Default is 0
lastIndexOf(substr, [start]) Searches and (if found) returns the index number of the searched character or substring within the string. Searches the string from end to beginning. If not found, -1 is returned. 'Start' is an optional argument specifying the position within string to begin the search. Default is string.length-1.
match(regexp) Used to match a regular expression against a string
replace(regexp, newSubStr)
replace(regexp, function)
Finds a match between a regular expression and a string, and replaces the matched substring with a new substring
search(regexp) Executes the search for a match between a regular expression and this String object
slice(start, [end]) Returns a substring of the string based on the 'start' and 'end' index arguments, NOT including the 'end' index itself. 'End' is optional, and if none is specified, the slice includes all characters from start to end of string
split(delimiter, [limit]) Splits a string into many according to the specified delimiter, and returns an array containing each element. The optional 'limit' is an integer that lets you specify the maximum number of elements to return.
substring(from, [to]) Returns the characters in a string between 'from' and 'to' indexes, NOT including 'to' inself. 'To' is optional, and if omitted, up to the end of the string is assumed
substr(start, [length]) Returns the characters in a string beginning at 'start' and through the specified number of characters, 'length'. 'Length' is optional, and if omitted, up to the end of the string is assumed
toLowerCase() Returns the string with all of its characters converted to lowercase
toUpperCase() Returns the string with all of its characters converted to uppercase
localeCompare ???
toLocaleLowerCase() ???
toLocaleUpperCase() ???