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This method determines whether a given object is in the Enumerable or not, based on the == comparison operator. This is an alias of member() method.
If you need to check whether there is an element matching a given predicate, use any() method instead.
Iterator.include(object); |
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ alert("$R(1,15).include(10) : " + $R(1,15).include(10) ); // Returns true alert("['hello', 'world'] : " + $R(1,15).include('HELLO') ); // Returns false } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <br /> <input type="button" value="Result" onclick="showResult();"/> </body> </html> |
To understand it in better way you can Try it yourself.
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