Sass and SCSS

8.

8.1.

Using Built-in Functions

8.1.1.

Color Functions

8.1.1.1.

8.1.1.2.

8.1.1.3.

8.1.1.4.

8.1.1.5.

8.1.1.6.

8.1.1.7.

8.1.2.

String Functions

8.1.2.1.

8.1.2.2.

8.1.2.3.

8.1.2.4.

8.1.2.5.

`to-upper-case()`

8.1.2.6.

`to-lower-case()`

8.1.3.

Number Functions

8.1.3.1.

8.1.3.2.

8.1.3.3.

8.1.3.4.

8.1.3.5.

8.1.3.6.

8.1.3.7.

8.1.4.

8.1.4.1.

8.1.4.2.

8.1.4.3.

8.1.4.4.

8.1.4.5.

8.1.4.6.

8.1.5.

8.1.5.1.

8.1.5.2.

`map-has-key()`

8.1.5.3.

8.1.5.4.

8.1.5.5.

8.1.5.6.

8.1.6.

Introspection Functions

8.1.6.1.

8.1.6.2.

8.1.6.3.

8.1.6.4.

`variable-exists()`

8.1.6.5.

`function-exists()`

8.1.6.6.

`mixin-exists()`

8.2.

Creating Custom Functions

8.2.1.

The `@function` Rule

8.2.1.1.

Syntax and Structure

8.2.2.

The `@return` Rule

8.2.2.1.

Returning Values

8.2.3.

Writing and Using Custom Functions

8.2.3.1.

Passing Arguments

8.2.3.2.

Using Functions in Styles

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9. Advanced Concepts