How do I insert attributes into an array?

Question

Each element in $(some_selector) has attribute my_attr (which is a number).

I would like insert all these attributes to array.

What would be the easiest way to do this using jQuery ?

Nick Craver · Accepted Answer · 2010-09-10 13:40:14Z

5

You can use .map() for this:

var arr = $("some_selector").map(function() {
            return $(this).attr("my_attr");
          }).get();

Or as a number, parse along the way:

var arr = $("some_selector").map(function() {
            return parseInt($(this).attr("my_attr"), 10);
          }).get();

Either of these return a JavaScript Array.

answered Sep 10, 2010 at 13:40

Nick Craver

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2 Comments

Nick, in the second version: if map's function returns the number itself, why actually get() is needed ?

@Misha - .get() is calling .toArray() under the covers, it is just getting a clean array with no other jQuery properties left over :)