jQuery css 也可以获得内联样式吗？

Question

As far as I know $(element).css() can get linked stylesheet information specific to the element. Can .css() also get inline styles? If so, do I need to specify different parameter value? For example, if I need to get background color, should I call both $(element).css('background-color') and $(element).css('backgroundColor') ?

Answer 1

As people have said in the comments, this question is something that you might have easily found out for yourself. Since we're here anyway though, here's the answer:
The .css() function can read both inline styles and separate styles (via link or style tags), but when it does write styles (when it has a parameter), it only modifies the inline style of the element.

You can find more about this here

Answer 2

var colorspan = document.createElement("span");
      colorspan.setAttribute('style','width:25px; height:25px');
      colorspan.setAttribute('id','promotcolor');
      var pormot = document.getElementById("promotcolor");
      pormot.style.backgroundColor = color;