| Method | Description |
| charAt() | Returns the character at the specified index |
| charCodeAt() | Returns the Unicode of the character at the specified index |
| concat() | Joins two or more strings, and returns a copy of the joined strings |
| fromCharCode() | Converts Unicode values to characters |
| indexOf() | Returns the position of the first found occurrence of a specified value in a string |
| lastIndexOf() | Returns the position of the last found occurrence of a specified value in a string |
| match() | Searches for a match between a regular expression and a string, and returns the matches |
| replace() | Searches for a match between a substring (or regular expression) and a string, and replaces the matched substring with a new substring |
| search() | Searches for a match between a regular expression and a string, and returns the position of the match |
| slice() | Extracts a part of a string and returns a new string |
| split() | Splits a string into an array of substrings |
| substr() | Extracts the characters from a string, beginning at a specified start position, and through the specified number of character |
| substring() | Extracts the characters from a string, between two specified indices |
| toLowerCase() | Converts a string to lowercase letters |
| toUpperCase() | Converts a string to uppercase letters |
| valueOf() | Returns the primitive value of a String object |