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!

2 revs · Accepted Answer · 2009-07-23 14:58:03Z

11

You could change the second line like this:

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

edited Jul 23, 2009 at 14:58

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2 revs
marcob

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2 Comments

Vindberg Over a year ago

Hi, thanks for your reply. The generated jquery array cannot be joined using the normal js function. At least its not working for me.

marcob Over a year ago

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

DLH · Accepted Answer · 2009-07-23 14:50:02Z

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, 2009 at 14:50

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DLH

Comments

Diego Carrion · Accepted Answer · 2013-04-01 20:11:33Z

0

You can also change the second line to this:

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

answered Apr 1, 2013 at 20:11

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Diego Carrion

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