Learn Canvas, Reason and Svelte

JavaScript community has been shaken recently by a release of Svelte 3 and for a good reason - it's a completely different approach than React or Vue. To quote the docs:

"[Svelte](https://svelte.dev/) is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue do the bulk of their work in the browser, Svelte shifts that work into a compile step that happens when you build your app."

**The best part?** If you have 26 spare minutes you can learn the basics of Svelte 3 and start building your own apps with it!

Enjoy!



The magical disappearing UI framework

 - The web's JavaScript bloat crisis, solved. Svelte turns your templates into tiny, framework-less vanilla JavaScript.
 - Simple and familiar. Build apps out of composable, easy-to-write blocks using languages you already know.
 - Super fast, rock solid. Compile-time static analysis ensures the browser does no more work than it needs to.

svelte

Up and running with Svelte 3

This course foremost will teach you about the syntax and semantics of the programming language Reason or also referred to as ReasonML. In addition, the course touches on best practices recommended by the official documentation. Each lesson is focusing on a specific feature, concept or best practice and can be watched independently. Still, the whole course is carefully crafted, and each lesson builds up on the previous ones.

Simple, fast & type safe code that leverages the JavaScript & OCaml ecosystems.

reason

Get Started with Reason

Node.js is a well established server runtime that many companies are using worldwide. Express.js is a server framework for Node.js used by over 5 million projects. ReasonML is a type-safe functional language that compiles to Javascript.

This playlist collects the basic pieces of information a programmer needs to get started building servers in ReasonML on Node.js and Express.js. Follow along to learn how to get the speed of Node, combined with the added type-safety of Reason.

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

node

Making an HTTP server in ReasonML on top of Node.js

A <canvas> element provides scripts with a resolution-dependent bitmap canvas, which can be used for rendering graphs, game graphics, or other visual images on the fly.

canvas

Learn some of the different ways you can affect the graphical content that you are drawing to a canvas. We'll cover global alpha, global composite operations and shadows.

Canvas Effects

With the HTML `canvas` you can easily draw text as well as graphics. Let's take a look at basic text manipulation on the canvas.

Drawing Text on Canvas

In this lesson, we cover several different ways to animate graphics drawn to Canvas.

Animating with Canvas

When drawing on the HTML5 canvas element, your fills aren't limited to flat colors. You can use gradients to get smoothly blended color fills on your drawn elements.

Gradient Fills on the HTML5 Canvas

Transformations can change the default canvas coordinate system and create complex drawings with much less code.

Canvas Transformations

In this lesson, listening for and handling mouse and keyboard events in Canvas is covered.

Listening for Mouse and Keyboard Events with HTML Canvas

The HTML Canvas element allows us to access powerful drawing APIs from JavaScript. In this lesson, the first in a series, we will learn about `<canvas>`, and get ready to start drawing.

Introduction to the HTML Canvas element

Now that we have an HTML5 canvas to draw on, let's take a look at drawing simple lines and rectangles with JavaScript

Drawing Paths - Lines and Rectangles

When drawing on your HTML canvas in JavaScript, you aren't restricted to straight lines. Using curves and arcs you are able to create smooth curved lines.

Drawing Paths - Curves and Arcs

You aren't limited to boring black lines when drawing on the HTML5 canvas element. Using styles, you can program interesting colorful images with JavaScript.

Drawing Styles on HTML5 Canvas

In this lesson, you'll learn how to read and write individual pixel color values from a canvas.

Canvas and Pixels

In addition to vector drawing, you can draw bitmap images into a canvas, and also retrieve a bitmap based on the content in a canvas.

HTML Canvas and Images

ReasonReact allows React developers to leverage ReasonML's type system when creating components.

In this lesson, we take a quick spin around the ReasonReact project by creating a `<HelloWorld />` component. By the end of this lesson, you'll have learned how to create a React component using the `ReasonReact.statelessComponent` module while getting a first-hand look at some of the amazing tooling ReasonReact provides its users with!

* [ReasonML Homepage](https://reasonml.github.io/)
* [ReasonReact Homepage](https://reasonml.github.io/reason-react)

Render a Stateless Component within a ReasonML Application using ReasonReact

In this lesson we explore ReasonML's language basic datatypes like `integer`, `float`, `boolean`, `string`, `char`, `unit` and `list`. Further you will get familiar with the addition operator, several relational operators as well as structural equality.

Basic Datatypes and Operators in Reason

Let bindings allow to bind values to names similar to variable declaration in other languages. There are subtle differences tough in every language and we are going to explore the semantics of ReasonML's let bindings. Further we see how type inference works and it's implications. Last but not least we discover type alias.

Let bindings, Type Inference and Type Aliases in Reason

Reason has lexical scope. In this lesson we explore what this means for the visibility of bindings using local block scopes.

Scope in Reason

First we are going to investigate the if expression and compare it to JavaScript's if statement. If being an expression has multiple implications on how to use it. In the second part we are introducing the ReasonML's switch expression in it's simplest form using structural equality as well as the fall-through case.

if-else and Switch Expressions in Reason

Records are like JavaScript objects but are

* immutable by default
* fixed in field names and types

We walk through how to create, access, update and destructure records. In certain niche situations we don't know the structure of our data ahead. In such cases using ReasonML objects works great.