jQuery: check if element has CSS attribute

Question

Is there a way to check an elements parents and find the first one that has a CSS background set and then return that background value?

Something like:

var background = $('element').parents().has(css('background')); 

UPDATE: This is the code I'm now using:

jQuery.fn.getBg = function(){     var newBackground = this.parents().filter(function() {         return $(this).css('background-color').length > 0;     }).eq(0).css('background-color');     $(this).css('background-color',newBackground); console.log("new background is: "+newBackground); }; 

Answer 1

If it's not set, fetching it will yield an empty string. Hence  

var bg = ('element').parents().filter(function() {     return $(this).css('background').length > 0; }).eq(0) 

EDIT

Some research shows that css('background') will always yield an empty string, or undefined, depending on browser. css('background-color') will correctly return the color of the element at hand; but also different values for each browser, so it is troublesome to test (transparent in IE, rgba(0,0,0,0) in firefox/chrome, for instance, both being accurate ways of specifying transparent).

jQuery.fn.getBg = function() {     return $(this).parents().filter(function() {         // only checking for IE and Firefox/Chrome. add values as cross-browser compatibility is required         var color = $(this).css('background-color');         return color != 'transparent' && color != 'rgba(0, 0, 0, 0)';     }).eq(0).css('background-color'); }; 

Answer 2

I believe the correct way to do this is to check the .length property.

In your case you'd want to loop through all of your elements and check for the first one that meets

.css('background').length != 0