0 
<script type="text/javascript">
     var temp=document.getElementById("col").value;
     var temp2=temp.split("%");
     for(i=0;i<col.length;i++) {         
         val = temp2[0]+temp2[1]+temp2[2];
         /* ... */
     }
</script>

I have the above code, instead of 

val = temp2[0]+temp2[1]+temp2[2];

Could it be possible to store all array values into val variable? I mean a generic way of adding values to val instead of specifying array position?

Thanks

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  • 1
    What's the purpose of the splitting the string and then combine it again? If you just want to get rid of the %, then use var val = temp.replace(/%/g, ''). Commented Jul 26, 2011 at 9:15

4 Answers 4

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2

You might want to try

temp2.join(""); // join elements with no delimiter
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2 Comments

This looks a very simple approach.
@Polappan: I would still like to stress Felix Kling's comment to your question as splitting and joining is more complicated than just removing all %s.
2

Would be great to know what you want to do

assuming col contains 1%2%3%4

var val = document.getElementById("col").value.split("%").join("");

val now contains 1234

var val = document.getElementById("col").value.replace(/\%/g,"");

val now contains 1234

var temp = document.getElementById("col").value.split("%");
var val = 0;
for (var i=0;i<temp.length;i++) val += parseInt(temp[i],10);

val now contains 10

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1 Comment

I would suggest using parseInt(..., 10) because some numbers imply other bases.
1

You can use the slice function:

val = temp2.slice(0, 3);
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4 Comments

val = temp2.slice(0, 3); instead of 0,3, could it be possible to have generic as sometimes array could contain many values.
oh, I thought you only wanted to have the first three elements. In this case, you could either use val = temp2.slice(0, temp2.length); or @pimvdb 's answer
And this is different from the much simpler temp2.join("") as posted by pimvdb how?
Yes this is simple temp2.join("")
0 
var sumall = function(a, b) {return a + b}
var s = [1,2,3,4,5].reduce(sumall)
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5 Comments

That is a very new function (JS 1.8, i.e. IE9) developer.mozilla.org/en/JavaScript/Reference/Global_Objects/…
@mplungjan - not so new, actually, it is supported in all modern browsers. Besides, it is quite easy to implement in older browsers. You provided a link with code snippet,actually)))
I for one cannot run IE9 so it is too new for at least one of my browsers.
@mplungjan Once again, it easy to implement in any browser. And use anytime you need it.
Sure. but worth mentioning, no?

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