📚
expressions - Functions
Deep Learning Path with Rest Parameters
Path: /courses/javascript/basics/functions/expressions
4
Path Depth
javascript
Category
basics
Course
functions
Section
Rest Parameter Route
File:
/courses/[...path].astro
Handles:
/courses/any/nested/path/structure
Current path:
["javascript", "basics", "functions", "expressions"]
Parsed as:
Category: "javascript", Course: "basics", Section: "functions", Content: "expressions"
Functions
Expressions
This is the detailed content for "expressions" within the Functions lesson. The rest parameter allows us to handle unlimited nesting depth in our course structure.
Related Topics in this Lesson:
Other Lessons in JavaScript Basics
Try These Deep Learning Paths
/courses/javascript/basics → Course overview /courses/javascript/basics/variables → Variables lesson /courses/javascript/basics/variables/scope → Scope topic /courses/react/fundamentals/components/jsx-syntax → React JSX topic Rest Parameter Implementation
---
// File: /courses/[...path].astro
const { path } = Astro.params;
// Parse unlimited depth path
const pathParts = path ? path.split('/').filter(Boolean) : [];
const [category, course, section, ...remaining] = pathParts;
// This route handles:
// /courses/javascript
// /courses/javascript/basics
// /courses/javascript/basics/variables
// /courses/javascript/basics/variables/scope
// /courses/any/deep/nested/path/structure
---
<h1>{category} → {course} → {section}</h1>