The last challenge showed how the <code>@for</code> directive uses a starting and ending value to loop a certain number of times. Sass also offers the <code>@each</code> directive which loops over each item in a list or map.
On each iteration, the variable gets assigned to the current value from the list or map.
<blockquote>@each $color in blue, red, green {<br> .#{$color}-text {color: $color;}<br>}</blockquote>
A map has slightly different syntax. Here's an example:
Note that the <code>$key</code> variable is needed to reference the keys in the map. Otherwise, the compiled CSS would have <code>color1</code>, <code>color2</code>... in it.
Both of the above code examples are converted into the following CSS:
Write an <code>@each</code> directive that goes through a list: <code>blue, black, red</code> and assigns each variable to a <code>.color-bg</code> class, where the "color" part changes for each item.
Each class should set the <code>background-color</code> the respective color.
testString: assert($('.blue-bg').css('background-color') == 'rgb(0, 0, 255)', 'Your <code>.blue-bg</code> class should have a <code>background-color</code> of blue.');
testString: assert($('.black-bg').css('background-color') == 'rgb(0, 0, 0)', 'Your <code>.black-bg</code> class should have a <code>background-color</code> of black.');
testString: assert($('.red-bg').css('background-color') == 'rgb(255, 0, 0)', 'Your <code>.red-bg</code> class should have a <code>background-color</code> of red.');
The solution requires using the $color variable twice: once for the class name and once for setting the background color. You can use either the list or map data type.