The Strings object lets you work with a series of characters. It wraps the string primitive data type with a number of helper methods.
Syntax
var var_name = new String(string);
A list of the methods available in String object along with their description is given below −
| S.No. | Property & Description |
|---|---|
| 1. | Constructor Returns a reference to the String function that created the object. |
| 2. | Length Returns the length of the string. |
| 3. | Prototype The prototype property allows you to add properties and methods to an object. |
String Methods
A list of the methods available in String object along with their description is given below −
| S.No. | Method & Description |
|---|---|
| 1. | charAt() Returns the character at the specified index. |
| 2. | charCodeAt() Returns a number indicating the Unicode value of the character at the given index. |
| 3. | concat() Combines the text of two strings and returns a new string. |
| 4. | indexOf() Returns the index within the calling String object of the first occurrence of the specified value, or -1 if not found. |
| 5. | lastIndexOf() Returns the index within the calling String object of the last occurrence of the specified value, or -1 if not found. |
| 6. | localeCompare() Returns a number indicating whether a reference string comes before or after or is the same as the given string in sort order. |
| 7. | match() Used to match a regular expression against a string. |
| 8. | replace() Used to find a match between a regular expression and a string, and to replace the matched substring with a new substring. |
| 9. | search() Executes the search for a match between a regular expression and a specified string. |
| 10. | slice() Extracts a section of a string and returns a new string. |
| 11. | split() Splits a String object into an array of strings by separating the string into substrings. |
| 12. | substr() Returns the characters in a string beginning at the specified location through the specified number of characters. |
| 13. | substring() Returns the characters in a string between two indexes into the string. |
| 14. | toLocaleLowerCase() The characters within a string are converted to lower case while respecting the current locale. |
| 15. | toLocaleUpperCase() The characters within a string are converted to upper case while respecting the current locale. |
| 16. | toLowerCase() Returns the calling string value converted to lower case. |
| 17. | toString() Returns a string representing the specified object. |
| 18. | toUpperCase() Returns the calling string value converted to uppercase. |
| 19. | valueOf() Returns the primitive value of the specified object. |
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