Design token management in SASS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a color token variable in Sass.

SASS

$primary-color: [1];

Drag options to blanks, or click blank then click option'

A#3498db

Bprimary-color

Ccolor-primary

Dblue

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name as the value instead of a color code.

Using plain color names without quotes or hash.

The correct way to define a color token variable in Sass is to assign a valid color value like #3498db to a variable.

2fill in blank

medium

Complete the code to use the color token variable in a CSS rule.

SASS

button {
  background-color: [1];
}

Drag options to blanks, or click blank then click option'

A#primary-color

B$primary-color

Cprimary-color

Dprimary-color()

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the dollar sign when using the variable.

Trying to call the variable like a function.

To use a Sass variable inside a CSS rule, prefix it with $ like $primary-color.

3fill in blank

hard

Fix the error in the token map definition by completing the blank.

SASS

$colors: (
  primary: [1],
  secondary: #2ecc71
);

Drag options to blanks, or click blank then click option'

A$primary-color

Bprimary-color

C#primary-color

DprimaryColor

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names without the dollar sign inside maps.

Trying to use camelCase variable names not defined.

When referencing a variable inside a Sass map, use the variable name with the dollar sign, like $primary-color.

4fill in blank

hard

Fill both blanks to access the primary color from the map and use it in a CSS rule.

SASS

button {
  background-color: map-get([1], [2]);
}

Drag options to blanks, or click blank then click option'

A$colors

Bprimary

Csecondary

D$primary-color

Attempts:

3 left

💡 Hint

Common Mistakes

Using the color variable directly instead of the map.

Using quotes around the key name.

Use map-get($colors, primary) to get the primary color from the map.

5fill in blank

hard

Fill all three blanks to create a map of font sizes and use the medium size in a CSS rule.

SASS

$font-sizes: (
  small: [1],
  medium: [2],
  large: [3]
);

p {
  font-size: map-get($font-sizes, medium);
}

Drag options to blanks, or click blank then click option'

A0.875rem

B1rem

C1.25rem

D1.5rem

Attempts:

3 left

💡 Hint

Common Mistakes

Using px units instead of rem.

Assigning sizes in wrong order.

Define font sizes with rem units for small, medium, and large. Medium is 1rem, small is smaller, large is bigger.

Practice

1. What is the main purpose of design tokens in Sass?

easy

A. To write JavaScript functions inside Sass

B. To create animations in Sass

C. To store reusable style values like colors and sizes

D. To manage HTML structure

Solution

1. Step 1: Understand design tokens concept

   Design tokens are variables that hold style values such as colors, fonts, and sizes.

2. Step 2: Identify their purpose in Sass

   They help keep styles consistent and easy to update by reusing these values.

3. Final Answer:

   To store reusable style values like colors and sizes -> Option C

4. Quick Check:

   Design tokens = reusable style values [OK]

Hint: Design tokens store style values for reuse [OK]

Common Mistakes:

• Thinking design tokens are for animations
• Confusing design tokens with JavaScript code
• Believing design tokens manage HTML

2. Which of the following is the correct way to declare a design token for a primary color in Sass?

easy

A. let $primary-color = #3498db;

B. primary-color = #3498db;

C. var primary-color = #3498db;

D. $primary-color: #3498db;

Solution

1. Step 1: Recall Sass variable syntax

   Sass variables start with a dollar sign ($) and use a colon to assign values.

2. Step 2: Check each option

   $primary-color: #3498db; uses correct Sass syntax: $primary-color: #3498db;. Others use JavaScript or invalid syntax.

3. Final Answer:

   $primary-color: #3498db; -> Option D

4. Quick Check:

   Sass variables start with $ and use : [OK]

Hint: Sass variables start with $ and use colon : [OK]

Common Mistakes:

• Using JavaScript variable syntax in Sass
• Omitting the $ sign before variable name
• Using = instead of : for assignment

3. Given the Sass code:

$font-size-base: 1.6rem;
$font-size-large: $font-size-base * 1.5;

body {
  font-size: $font-size-large;
}

What will be the computed font size for the body element?

medium

A. 2.4rem

B. 1.5rem

C. 1.6rem

D. 3.1rem

Solution

1. Step 1: Calculate $font-size-large value

   $font-size-large is $font-size-base multiplied by 1.5, so 1.6rem * 1.5 = 2.4rem.

2. Step 2: Apply value to body font-size

   The body font-size uses $font-size-large, so it will be 2.4rem.

3. Final Answer:

   2.4rem -> Option A

4. Quick Check:

   1.6rem * 1.5 = 2.4rem [OK]

Hint: Multiply base size by factor for large size [OK]

Common Mistakes:

• Using 1.5rem instead of multiplying
• Confusing base size with large size
• Forgetting to multiply the values

4. Identify the error in this Sass code for managing design tokens:

$color-primary: #ff0000
$color-secondary: #00ff00;

.button {
  background-color: $color-primary;
}

medium

A. Missing semicolon after $color-primary declaration

B. Wrong variable name syntax

C. Using hex colors is not allowed in Sass variables

D. Background color property is invalid

Solution

1. Step 1: Check variable declarations

   $color-primary is missing a semicolon at the end of the line, which is required in Sass.

2. Step 2: Verify other parts

   Variable names and background-color property are correct. Hex colors are valid.

3. Final Answer:

   Missing semicolon after $color-primary declaration -> Option A

4. Quick Check:

   Each Sass variable line must end with ; [OK]

Hint: Always end Sass variable lines with semicolon ; [OK]

Common Mistakes:

• Omitting semicolons after variable declarations
• Thinking hex colors are invalid in Sass
• Misnaming variables without $ sign

5. You want to create a design token system in Sass that allows easy theme switching between light and dark modes. Which approach below best manages color tokens for this purpose?

hard

A. Hardcode colors directly in CSS without variables

B. Define separate maps for light and dark colors, then use a variable to select the active map

C. Use JavaScript to change colors only, ignoring Sass variables

D. Create one set of variables and manually change each color in the stylesheet

Solution

1. Step 1: Understand theme switching needs

   Theme switching requires grouping colors so you can easily swap them based on mode.

2. Step 2: Evaluate options for managing tokens

   Using separate Sass maps for light and dark themes allows selecting the active theme map with a variable, making switching easy and maintainable.

3. Step 3: Reject other options

   Hardcoding colors or manual changes are error-prone and not scalable. JavaScript alone ignores Sass benefits.

4. Final Answer:

   Define separate maps for light and dark colors, then use a variable to select the active map -> Option B

5. Quick Check:

   Use maps and variables for theme switching [OK]

Hint: Use Sass maps and a variable to switch themes [OK]

Common Mistakes:

• Hardcoding colors instead of using variables
• Ignoring Sass variables and relying only on JavaScript
• Manually changing colors everywhere instead of grouping