repeatedly append a javascript string

110 100+

I've got some code which allows users to vote for or against items on my site. However, this is a bit special because the I need to save the users previous votes to a single javascript variable.

The javascript code I've been using is here

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var searchStrNew = "";

function getSearchStrVote(puid, rate, searchStrNew) {
 
    if (rate == '1'){

    searchStrNew = searchStrNew+"&like="+id;

    }

    if (rate =='0') {

    searchStrNew = searchStrNew+"&hate="+id;

    }    

}

each time I hit the button which launches this function, it returns only the most recent input.
I need to keep track of past inputs locally (as it is user specific, and I have no need to store it in the db.

So if the user selects like, hate, like for items 1,2,3 respectively, the var searchStrNew should equal &hate=1&like=2&hate=3.
The code I have above only returns the last vote.

I'm sure this is super simple, but my searches have come up empty, and I think it should work as I have it (of course, I've tried minor changes ad still can't get it going).

Oct 22 '07 #1

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2149

Ferris

101

100+

the function you wrote can only add one "&like" or "&hate" by one calling,and searchStrNew is a globle various. so you needn't pass it to the function as a parameter.

I wrote a simple code for you..I wish it will help you.

[HTML]
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<script language="javascript">

</script>
<body>
<h1>item1</h1>
<input type="radio" id="1" name="item1" checked />like
<input type="radio" id="1" name="item1" />hate
<h1>item2</h1>
<input type="radio" id="2" name="item2" checked />like
<input type="radio" id="2" name="item2" />hate
<h1>item2</h1>
<input type="radio" id="3" name="item3" checked />like
<input type="radio" id="3" name="item3" />hate
<br /><br />
<input type="button" id="btnTest" value="Test" onClick="getSearchStrVote();" />
</body>
</html>

[/HTML]

Oct 22 '07 #2

pedalpete

110

100+

thanks Ferris,

That wasn't exactly what I was looking for, but I think you pointed me in the right direction. At least I have it working now.

My input is not a form, but a collection of buttons which the user can select if they choose , but they don't have to select anything. The result creates a url to retrieve new data via ajax.

the code that I have working is below. Hopefully it will help somebody else later, though I'm not sure how efficient it is.

where start is the original unvoted request url

Expand|Select|Wrap|Line Numbers

 
var searchStr = start;
 
function getSearchStrVote(id, rate) {

    var searchStrNew = searchStr;

    if (rate == '1'){

    searchStrNew = searchStrNew+"&more="+id;

    }

    if (rate =='0') {

    searchStrNew = searchStrNew+"&less="+id;

    }    

    searchStr = searchStrNew;

    alert(searchStrNew, puid);

}

thanks for your help.
Pete

Oct 22 '07 #3

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