3.3 KiB
3.3 KiB
id | title | challengeType | forumTopicId |
---|---|---|---|
587d7dbe367417b2b2512bb8 | Use @if and @else to Add Logic To Your Styles | 0 | 301463 |
Description
@if
directive in Sass is useful to test for a specific case - it works just like the if
statement in JavaScript.
@mixin make-bold($bool) {
@if $bool == true {
font-weight: bold;
}
}
And just like in JavaScript, @else if
and @else
test for more conditions:
@mixin text-effect($val) {
@if $val == danger {
color: red;
}
@else if $val == alert {
color: yellow;
}
@else if $val == success {
color: green;
}
@else {
color: black;
}
}
Instructions
border-stroke
that takes a parameter $val
. The mixin should check for the following conditions using @if
, @else if
, and @else
:
light - 1px solid black
medium - 3px solid black
heavy - 6px solid black
If $val
is not light
, medium
, or heavy
, the border should be set to none
.
Tests
tests:
- text: Your code should declare a mixin named <code>border-stroke</code> which has a parameter named <code>$val</code>.
testString: assert(code.match(/@mixin\s+?border-stroke\s*?\(\s*?\$val\s*?\)\s*?{/gi));
- text: Your mixin should have an <code>@if</code> statement to check if <code>$val</code> is light, and to set the <code>border</code> to 1px solid black.
testString: assert(code.match(/@if\s+?\$val\s*?===?\s*?light\s*?{\s*?border\s*?:\s*?1px\s+?solid\s+?black\s*?;\s*?}/gi));
- text: Your mixin should have an <code>@else if</code> statement to check if <code>$val</code> is medium, and to set the <code>border</code> to 3px solid black.
testString: assert(code.match(/@else\s+?if\s+?\$val\s*?===?\s*?medium\s*?{\s*?border\s*?:\s*?3px\s+?solid\s+?black\s*?;\s*?}/gi));
- text: Your mixin should have an <code>@else if</code> statement to check if <code>$val</code> is heavy, and to set the <code>border</code> to 6px solid black.
testString: assert(code.match(/@else\s+?if\s+?\$val\s*?===?\s*?heavy\s*?{\s*?border\s*?:\s*?6px\s+?solid\s+?black\s*?;\s*?}/gi));
- text: Your mixin should have an <code>@else</code> statement to set the <code>border</code> to none.
testString: assert(code.match(/@else\s*?{\s*?border\s*?:\s*?none\s*?;\s*?}/gi));
Challenge Seed
<style type='text/sass'>
#box {
width: 150px;
height: 150px;
background-color: red;
@include border-stroke(medium);
}
</style>
<div id="box"></div>
Solution
<style type='text/sass'>
@mixin border-stroke($val) {
@if $val == light {
border: 1px solid black;
}
@else if $val == medium {
border: 3px solid black;
}
@else if $val == heavy {
border: 6px solid black;
}
@else {
border: none;
}
}
#box {
width: 150px;
height: 150px;
background-color: red;
@include border-stroke(medium);
}
</style>
<div id="box"></div>