I'm having trouble with the .attr() function in jQuery. It doesn't seem to be changing the background-color of the div with the id "outline" like I expected.
Here's an example of my code:
<div id="outline"></div>And here is the CSS styling for the div:
#outline {
height: 300px;
width: 300px;
background-color: black;
}This is the JavaScript (jQuery) code I wrote to change the background color to blue:
$("#outline").attr('background-color', 'blue');background-color is not an HTML attribute, it is a style attribute - it should be used with the css function instead.
$("#container").css('background-color', 'red');#container {
height: 200px;
width: 200px;
background-color: white;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<div id="container"></div>// You can use .css() to set the html style attribute
// .css() allows setting one or more styles at a time
$("#outline").css('background-color','blue');
// This code does the same thing as above
// .attr() is for setting one or more html attributes
$("#outline").attr('style', 'background-color:blue');#outline {
height: 300px;
width: 300px;
background-color: black;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="outline"></div>Background color is not a regular attribute, but a CSS property.
For changing the background color, use the following code:
$("#outline").css('backgroundColor', 'blue');
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