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how to increment an onclick argument or is it a parameter?

Posted on 2014-10-14
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Last Modified: 2014-10-14
In my html, if I have:

<script>var index = 1</script>
 <input type="button" value="Add One" onclick="addOneFunction(index)">

how can I increment the index value by 1 each time the button is clicked?
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Question by:Gary Samuels
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3 Comments
 
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Expert Comment

by:leakim971
ID: 40380405
<input type="button" value="Add One" onclick="addOneFunction(++index)">

or

<input type="button" value="Add One" onclick="addOneFunction(index++)">
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leakim971 earned 500 total points
ID: 40380409
I think you want the second which add 1 after passing it, not before
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Author Closing Comment

by:Gary Samuels
ID: 40380425
Thanks
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