[jquery] Can I get div's background-image url?

I have a button of which when I click it I want to alert the background-image URL of #div1.

Is it possible?

Using just one call to replace (regex version): var bgUrl = $('#element-id').css('background-image').replace(/url\(("|')(.+)("|')\)/gi, '$2');

I'm using this one

  function getBackgroundImageUrl($element) {
    if (!($element instanceof jQuery)) {
      $element = $($element);
    }

    var imageUrl = $element.css('background-image');
    return imageUrl.replace(/(url\(|\)|'|")/gi, ''); // Strip everything but the url itself
  }

I think that using a regular expression for this is faulty mainly due to

• The simplicity of the task
• Running a regular expression is always more cpu intensive/longer than cutting a string.

Since the url(" and ") components are constant, trim your string like so:

$("#id").click(function() {
     var bg = $(this).css('background-image').trim();
     var res = bg.substring(5, bg.length - 2);
     alert(res);
});

I have slightly improved answer, which handles extended CSS definitions like:

background-image: url(http://d36xtkk24g8jdx.cloudfront.net/bluebar/359de8f/images/shared/noise-1.png), -webkit-linear-gradient(top, rgb(81, 127, 164), rgb(48, 96, 136))

JavaScript code:

var bg = $("div").css("background-image")
bg = bg.replace(/.*\s?url\([\'\"]?/, '').replace(/[\'\"]?\).*/, '')

Result:

"http://d36xtkk24g8jdx.cloudfront.net/bluebar/359de8f/images/shared/noise-1.png"

Here is a simple regex which will remove the url(" and ") from the returned string.

var css = $("#myElem").css("background-image");
var img = css.replace(/(?:^url\(["']?|["']?\)$)/g, "");

As mentioned already, Blazemongers solution is failing to remove quotes (e.g. returned by Firefox). Since I find Rob Ws solution to be rather complicated, adding my 2 cents here:

$('#div1').click (function(){
  url = $(this).css('background-image').replace(/^url\(['"]?/,'').replace(/['"]?\)$/,'');
  alert(url);
})

Yes, that's possible:

$("#id-of-button").click(function() {
    var bg_url = $('#div1').css('background-image');
    // ^ Either "none" or url("...urlhere..")
    bg_url = /^url\((['"]?)(.*)\1\)$/.exec(bg_url);
    bg_url = bg_url ? bg_url[2] : ""; // If matched, retrieve url, otherwise ""
    alert(bg_url);
});