This method merges object to hash and returns the result of that merge. Duplicate keys will cause an overwrite.
hash.merge(object) ;
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ var h = $H({ name: 'Prototype', version: 1.6 }); h = h.merge({ version: 1.6, author: 'Sam' }); h.each(function(pair) { alert(pair.key + ' = "' + pair.value + '"'); }); } </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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