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Prototype enhances the String object with a series of useful methods ranging from the trivial to the complex.
Here is the list of all the functions with examples dealing with String.
Prototype String Methods
NOTE − Make sure you have the prototype.js version of 1.6.
| S.No. | Method & Description |
|---|---|
| 1. | blank()
Checks if the string is ”blank”, meaning either empty or containing only whitespace. |
| 2. | camelize()
Converts a string separated by dashes into a camelCase equivalent. For instance, ”foo-bar” would be converted to ”fooBar”. |
| 3. | capitalize()
Capitalizes the first letter of a string and downcases all the others. |
| 4. | dasherize()
Replaces every instance of the underscore character (“_”) by a dash (“-“). |
| 5. | empty()
Checks if the string is empty. |
| 6. | endsWith()
Checks if the string ends with substring. |
| 7. | escapeHTML()
Converts HTML special characters to their entity equivalents. |
| 8. | evalJSON()
Evaluates the JSON in the string and returns the resulting object. |
| 9. | evalScripts()
Evaluates the content of any script block present in the string. Returns an array containing the value returned by each script. |
| 10. | extractScripts()
Extracts the content of any script block present in the string and returns them as an array of strings. |
| 11. | gsub()
Returns the string with every occurrence of a given pattern replaced by either a regular string, the returned value of a function or a Template string. |
| 12. | include()
Checks if the string contains a substring. |
| 13. | inspect()
Returns a debug-oriented version of the string. |
| 14. | interpolate()
Treats the string as a Template and fills it with object”s properties. |
| 15. | isJSON()
Checks if the string is valid JSON by the use of regular expressions. This security method is called internally. |
| 16. | parseQuery()
Parses a URI-like query string and returns an object composed of parameter/value pairs. |
| 17. | scan()
Allows iterating over every occurrence of the given pattern. |
| 18. | startsWith()
Checks if the string starts with substring. |
| 19. | strip()
Strips all the leading and trailing whitespace from a string. |
| 20. | stripScripts()
Strips a string of anything that looks like an HTML script block. |
| 21. | stripTags()
Strips a string of any HTML tag. |
| 22. | sub()
Returns a string with the first count occurrences of pattern replaced by either a regular string, the returned value of a function or a Template string. |
| 23. | succ()
Used internally by ObjectRange. Converts the last character of the string to the following character in the Unicode alphabet. |
| 24. | times()
Concatenates the string count times. |
| 25. | toArray()
Splits the string character-by-character and returns an array with the result. |
| 26. | toJSON()
Returns a JSON string. |
| 27. | toQueryParams()
Parses a URI-like query string and returns an object composed of parameter/value pairs. |
| 28. | truncate()
Truncates a string to the given length and appends a suffix to it (indicating that it is only an excerpt). |
| 29. | underscore()
Converts a camelized string into a series of words separated by an underscore (“_”). |
| 30. | unescapeHTML()
Strips tags and converts the entity forms of special HTML characters to their normal form. |
| 31. | unfilterJSON ()
Strips comment delimiters around Ajax JSON or JavaScript responses. This security method is called internally. |
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