Skip to main content

Web learning overview

Welcome to the Web Learning documentation site - your comprehensive guide for preparing interviewers on advanced web technologies, specifically focusing on TypeScript SDKs, Rust/WebAssembly integration, and concurrency patterns.

What You'll Learn​

This documentation covers five critical areas for modern web development:

TypeScript SDK & WebAssembly Integration​

Learn how to design and implement TypeScript SDKs that effectively wrap Rust/WASM modules for both Node.js and browser environments.

  • API design patterns and initialization strategies
  • Asset loading and bundling considerations
  • Error handling and cancellation patterns
  • Cross-platform compatibility

Workers & Concurrency​

Master the art of offloading heavy computational work using various concurrency patterns and worker threads.

  • MessagePort and transferable objects
  • Pipeline design and backpressure handling
  • Worker pool management
  • Cross-origin considerations

Rust/WASM Specifics​

Understand the unique challenges and opportunities when working with Rust compiled to WebAssembly.

  • Memory management and limitations
  • Rayon for parallel processing
  • Error mapping between Rust and JavaScript
  • Build optimization and size considerations

Cross-Origin Security​

Navigate the complex world of cross-origin policies, CORS, and security isolation requirements.

  • Same-origin policy and CORS fundamentals
  • Cross-origin isolation (COOP/COEP)
  • SharedArrayBuffer security requirements
  • Canvas tainting and resource loading

Full-Stack Debugging​

Develop skills for debugging across the TypeScript-WASM-Runtime boundary.

  • Profiling and tracing techniques
  • Identifying boundary-related bugs
  • Performance pathology detection
  • Memory leak investigation

How to Use This Guide​

Each section includes:

  • Teaching Notes: Concise explanations with practical examples
  • Signals of Mastery: What good answers look like
  • Red Flags: Common misconceptions and poor practices
  • Questions: Probing interview questions with expected talking points
  • Exercises: Hands-on scenarios for practical assessment
Interviewer Focus This guide is designed specifically for

interviewers preparing to assess candidates' knowledge in these advanced web development areas. Each section includes both technical content and assessment guidance. :::

Getting Started​

  1. For Interviewers: Start with the Interviewer Rubric to understand the assessment framework
  2. For Quick Reference: Use the Quick Cheatsheet during interviews
  3. For Deep Learning: Work through each technical section systematically
  4. For Practice: Try the Exercises to test your understanding

Prerequisites​

Basic familiarity with:

  • TypeScript/JavaScript fundamentals
  • Web APIs and browser environment
  • Basic Rust concepts (helpful but not required)
  • WebAssembly concepts (helpful but not required)
Advanced Content This material assumes intermediate to advanced web

development knowledge. It's designed for senior developers and technical interviewers assessing senior-level candidates. :::