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This is an intensive hands-on training course aimed at seasoned Node developers.
The purpose of the course is to instill a deeper understanding of the language and best practices. At the end of it, you will feel confident that you are developing applications efficiently and optimally – using appropriate language, tools, tests and techniques.
Delegates will be introduced to the theory and spend most of the time practicing it using specially developed hands-on abs.
- Recap of Intro and basics
- The basics of Javascript syntax and semantics. We can keep this very short
assuming everyone is geting it.
- Advanced javascript
- Advanced/newer Javascript features such as Generators, just enough as
needed for the rest of the course
- Functional techniques
- Map, Reduce and using first class functions. We'll talk a bit about what a
closure is and what that means for your Javascript code.
- Async techniques
- Basic async development programming techniques in Javasscript
- Promises
- The hows and whys of promises
- Async await
- How to take what you know about promises and apply to the new async...await
synctax
- Javascript tooling
- Prettier, linters, flow. Tooling available to make Javascript development
better
- The event loop
- How it works and how interact with it. Difference between setTimeout,
setImmediate and process.nextTick etc
- The Node module system
- What you need to know to understand what happens when you use require
- Node Events
- How and when to use the EventEmitter and what its design decisions (eg
async dispatch) mean for you
- Node Streams
- Why they're there and what to use them for
- Error handling in node
- Handling errors in synchronous, callback based and promise based code and
how to make it all work together.
- Debugging with external debuggers
- How to connect an external debugger and when it's useful
- Node Performance
- Basics of writing fast Javascript code
- Running a profiler
- Tour of testing libraries
- A quick tour thorugh what's available
- Testing techniques
- How to write tests for Node applications and what's different from other
languages
- Isolation between tests
- Keeping your tests from messing with each other
- Testing async functions
- The various techniques for testing async code. We'll cover both async tests
and mocking of the async primitives to test async code with sync tests.
- Mocking in javascript
- How to mock the components of your application and libraries for isolated
testing without it being a total pain and without it leaking between tests
Optional Extras (1-2 days)
Advanced streams
- Readers and Writers
- Implementing custom transforms
- Back pressure, what it is, why it's important and how to communicate it
- Stream based programming
ES6 and beyond
Advanced profiling and performance
- Using the various profilers available in node
- Interpreting their output
- Performance bottlenecks in node
- Advanced techniques writing faster code
Classroom or Remote
Remote
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JB International Training Ltd - Company number 08458005
Registered address 1345 High Road, London, N20 9HR
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