--description--
The last challenge showed how the @for
directive uses a starting and ending value to loop a certain number of times. Sass also offers the @each
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.
@each $color in blue, red, green {
.#{$color}-text {color: $color;}
}
A map has slightly different syntax. Here's an example:
$colors: (color1: blue, color2: red, color3: green);
@each $key, $color in $colors {
.#{$color}-text {color: $color;}
}
Note that the $key
variable is needed to reference the keys in the map. Otherwise, the compiled CSS would have color1
, color2
... in it. Both of the above code examples are converted into the following CSS:
.blue-text {
color: blue;
}
.red-text {
color: red;
}
.green-text {
color: green;
}
--instructions--
Write an @each
directive that goes through a list: blue, black, red
and assigns each variable to a .color-bg
class, where the color
part changes for each item to the respective color. Each class should set the background-color
to the respective color as well.
--hints--
Your code should use the @each
directive.
assert(code.match(/@each /g));
Your .blue-bg
class should have a background-color
of blue.
assert($('.blue-bg').css('background-color') == 'rgb(0, 0, 255)');
Your .black-bg
class should have a background-color
of black.
assert($('.black-bg').css('background-color') == 'rgb(0, 0, 0)');
Your .red-bg
class should have a background-color
of red.
assert($('.red-bg').css('background-color') == 'rgb(255, 0, 0)');
--seed--
--seed-contents--
<style type='text/scss'>
div {
height: 200px;
width: 200px;
}
</style>
<div class="blue-bg"></div>
<div class="black-bg"></div>
<div class="red-bg"></div>
--solutions--
<style type='text/scss'>
@each $color in blue, black, red {
.#{$color}-bg {background-color: $color;}
}
div {
height: 200px;
width: 200px;
}
</style>
<div class="blue-bg"></div>
<div class="black-bg"></div>
<div class="red-bg"></div>
<style type='text/scss'>
$colors: (color1: blue, color2: black, color3: red);
@each $key, $color in $colors {
.#{$color}-bg {background-color: $color;}
}
div {
height: 200px;
width: 200px;
}
</style>
<div class="blue-bg"></div>
<div class="black-bg"></div>
<div class="red-bg"></div>