- Prototype Tutorial
- Prototype - Home
- Prototype - Short Overview
- Prototype - Useful Features
- Prototype - Utility Methods
- Prototype - Element Object
- Prototype - Number Processing
- Prototype - Strings Processing
- Prototype - Array Processing
- Prototype - Hash processing
- Prototype - Basic Object
- Prototype - Templating
- Prototype - Enumerating
- Prototype - Event Handling
- Prototype - Form Management
- Prototype - JSON Support
- Prototype - AJAX Support
- Prototype - Expressing Ranges
- Prototype - Periodical Execution
- Prototype Useful Resources
- Prototype - Quick Guide
- Prototype - Useful Resources
- Prototype - Discussion
Prototype - Enumerable invoke() Method
This method is an optimization for a common use-case of each() or collect() method. Invoking the same method, with the same potential arguments, for all the elements.
Syntax
Iterator.invoke(methodName[, arg...]);
Return Value
Returns the results of the method calls.
Example
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> function showResult() { alert(['hello', 'world', 'cool!'].invoke('toUpperCase') ); // Returns ['HELLO', 'WORLD', 'COOL!']; alert(['hello', 'world', 'cool!'].invoke('substring', 0, 3)); // Returns ['hel', 'wor', 'coo'] } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <br /> <input type = "button" value = "Result" onclick = "showResult();"/> </body> </html>
Output
prototype_enumerating.htm
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