JQuery: Turn array input values into a string optimization

Question

using jQuery I have the following code:

var selectedIdsArray = $("#selectId option:selected").map(function(){return this.value;});
var selectedIdsStr = $.map(selectedIdsArray, function(val){ return "" + val + "";});

It successfully retrieves a string of ids eg. selectedIdsStr = "2,45,245,1" from an <select multiple='multiple'> element. I was wondering if there is a more efficient way (less code) to achieve this?

Thanks!

marcob · Accepted Answer · 2009-07-23T14:58:03.863

11

You could change the second line like this:

var selectedIdsStr = selectedIdsArray.get().join(',');

edited Jul 23 '09 at 14:58

answered Jul 23 '09 at 14:39

marcob

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Hi, thanks for your reply. The generated jquery array cannot be joined using the normal js function. At least its not working for me. – Vindberg Jul 23 '09 at 14:44
var selectedIdsStr = selectedIdsArray.get().join(','); I forgot .get() ..sorry – marcob Jul 23 '09 at 14:57

score 3 · Answer 2 · answered Jul 23 '09 at 14:50

3

var selectedIdsStr = $("#selectId option:selected").map(function(){
   return $(this).val();
}).get().join(",");

adapted from http://docs.jquery.com/Traversing/map#callback

answered Jul 23 '09 at 14:50

DLH

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score 0 · Answer 3 · answered Apr 01 '13 at 20:11

0

You can also change the second line to this:

var selectedIdsStr = selectedIdsArray.get().toString()

answered Apr 01 '13 at 20:11

Diego Carrion

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JQuery: Turn array input values into a string optimization

3 Answers3

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