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This method returns the position of the first occurrence of the argument within the array. If the argument doesn't exist in the array, returns -1.
NOTE: First index of the Array starts from zero.
array.indexOf(value) ; |
Returns the position of the first occurrence of the argument within the array. If the argument doesn't exist in the array, returns -1
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ var arr = [3, 5, 6, 1, 20]; alert("Found position : " + arr.indexOf(6) ); } </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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