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Hands-On Scala.js
- Some Scala experience
- Some Javascript/Web experience
Intro to Scala.js
What
Why
Where
Tutorial
A HTML5 Canvas Application
Accessing DOM APIs
Using js.Dynamic
Using scala-js-dom for type-safety
Input, Output
Publishing
Looking through the generated code
Interactive Web Pages
Managing HTML using the DOM
Managing HTML using Scalatags
Wiring up DOM events and interactions
Publishing
Building Cross-platform Libraries
Shared code organization
Shared tests using uTest
Publishing
Client-Server Integration
Hello World client/server project
Serving the client javascript from the server
Sharing code
Using shared libraries
Writing shared application logic
Ajax calls
Using the DOM APIs
Using uPickle for serialization
Using Autowire for routing
Deployment
Reference
Javascript Interop
Calling Javascript from Scala.js
Writing your own FFI facades
Calling Scala.js from Javascript
Mapping of Types
Library Dependencies
Differences from Scala/JVM
Compilation Pipeline
Optimization Phases
Intro to Intro to Scala.js
Scala.js is a compiler that compiles Scala source code to equivalent Javascript code. That lets you write Scala code that you can run in a web browser, or other environments (Chrome plugins, Node.js, etc.) where Javascript is supported.
This book is targeted at people who have some experience in both Scala and Javascript. You do not need to be an expert in both, but I will skim over basic concepts in both languages to cut to the Scala.js specific points.
Scala.js on its own allows you to develop web applications with the safety and toolability that comes with a statically typed language.
- Typo-safety due to its compiler which catches many silly errors before the code is run
- In-editor support for autocomplete, error-highlighting, refactors, and intelligent navigation
- Very small compiled executables, in the 170-400kb range
- Source-maps for ease of debugging
In general, the development experience is on
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