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id	title	challengeType	forumTopicId
587d7dbf367417b2b2512bbb	Apply a Style Until a Condition is Met with @while	0	301454

Description

The @while directive is an option with similar functionality to the JavaScript while loop. It creates CSS rules until a condition is met. The @for challenge gave an example to create a simple grid system. This can also work with @while.

$x: 1;
@while $x < 13 {
  .col-#{$x} { width: 100%/12 * $x;}
  $x: $x + 1;
}

First, define a variable $x and set it to 1. Next, use the @while directive to create the grid system while $x is less than 13. After setting the CSS rule for width, $x is incremented by 1 to avoid an infinite loop.

Instructions

Use @while to create a series of classes with different font-sizes. There should be 5 different classes from text-1 to text-5. Then set font-size to 15px multiplied by the current index number. Make sure to avoid an infinite loop!

Tests

tests:
  - text: Your code should use the <code>@while</code> directive.
    testString: assert(code.match(/@while /g));
  - text: Your code should use an index variable which starts at an index of 1.
    testString: assert(code.match(/\$.*:\s*?1;/gi));
  - text: Your code should increment the counter variable.
    testString: assert(code.match(/\$(.*)\s*?:\s*\$\1\s*\+\s*1\s*;/gi));
  - text: Your <code>.text-1</code> class should have a <code>font-size</code> of 15px.
    testString: assert($('.text-1').css('font-size') == '15px');
  - text: Your <code>.text-2</code> class should have a <code>font-size</code> of 30px.
    testString: assert($('.text-2').css('font-size') == '30px');
  - text: Your <code>.text-3</code> class should have a <code>font-size</code> of 45px.
    testString: assert($('.text-3').css('font-size') == '45px');
  - text: Your <code>.text-4</code> class should have a <code>font-size</code> of 60px.
    testString: assert($('.text-4').css('font-size') == '60px');
  - text: Your <code>.text-5</code> class should have a <code>font-size</code> of 75px.
    testString: assert($('.text-5').css('font-size') == '75px');

Challenge Seed

<style type='text/sass'>



</style>

<p class="text-1">Hello</p>
<p class="text-2">Hello</p>
<p class="text-3">Hello</p>
<p class="text-4">Hello</p>
<p class="text-5">Hello</p>

Solution

<style type='text/sass'>
  $x: 1;
  @while $x < 6 {
    .text-#{$x}{
      font-size: 15px * $x;
    }
    $x: $x + 1;
  }
</style>

<p class="text-1">Hello</p>
<p class="text-2">Hello</p>
<p class="text-3">Hello</p>
<p class="text-4">Hello</p>
<p class="text-5">Hello</p>

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