Learn Gulp, Mdx and Ruby

MDX has grown rapidly since the first commit two and a half years ago. We'd like to celebrate our accomplishments so far, and talk about what lies ahead. We've got lots of plans.
Learn how MDX increases developer productivity, improves educational content authoring, and even peek behind the curtains to see how MDX works.

MDX is an authorable format that lets you seamlessly use JSX in your markdown documents. You can import components, like interactive charts or notifications, and export metadata. This makes writing long-form content with components a blast.



MDX Conf 2020

Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.

rails

Expanding on [Part 1](https://egghead.io/lessons/angularjs-rails-todo-api-part-1), this lesson will look at how to bootstrap AngularJS in a rails application as part of the asset pipeline. With Angular available, you'll see how to communicate with the Rails API using $resource.

Rails Todo API Part 2

AngularJS is an open-source JavaScript framework, maintained by Google, that assists with running single-page applications. Its goal is to augment web-based applications with model–view–controller (MVC) capability, in an effort to make both development and testing easier.

angularjs

Rails makes an excellent choice for delivering data to AngularJS via REST apis. In this first lesson of a two part series, you'll see how to create a simple API for CRUD operations on TODOs using Rails. This isn't an introduction to Rails, and assumes you know the basics. 

Rails Todo API Part 1

Gulp is a toolkit for automating painful or time-consuming tasks in your development workflow, so you can stop messing around and build something.

gulp

Building upon the `watch` task that we begin this lesson with, we’ll look at how to create a local development server using the `app` directory as the web root. By using Browsersync to achieve this, we can also instruct all connected browsers to automatically reload each time our bundle is re-generated. Browsersync has a public `.stream()` method that is designed exactly for this purpose.

Gulp and Browserify - Adding Live Reload with Browsersync

Babel has support for the latest version of JavaScript through syntax transformers. These plugins allow you to use new syntax, right now without waiting for browser support.

babel

What is already a nice workflow using Gulp, Browserify, Watchify & Browsersync to enable auto rebuilds & live browser reloading can be further improved by adding Babelify. A simple wrapper around the popular transpiler Babel, Babelify can ‘transform’ source files as they pass through our stream to enable certain Javascript features not yet available in the Browser or Node. We end the lesson by looking at how to generate & extract sourcemaps using `exorcist`.

Gulp and Browserify - Adding Babel & Source Maps

Browserify lets you require('modules') in the browser by bundling up all of your dependencies.

browserify

Let's look at the basics of setting up Gulp and Browserify. Creating a Gulp task from scratch, we'll cover how to utilise the Browserify API to generate a single `bundle.js` file, catch and log any errors that occur in the compilation process, transform the stream into a format that can be consumed by `gulp.dest` and finish by writing the bundle to a `dist` directory.

Gulp and Browserify - Initial Setup

A brief introduction to using GulpJS in your JavaScript application and creating your first Gulp task.

Installing and Writing a Default Task with Gulp

Create a search directive with AngularJS and Rails. You'll want to take a look at the related [Rails TODO API Part 1](https://egghead.io/lessons/angularjs-rails-todo-api-part-1) and [Rails TODO API Part 2](https://egghead.io/lessons/angularjs-rails-todo-api-part-2). This is **not** a Rails how-to, so some knowledge there is expected to get up and running.

Search Directive with Rails

Beginning with a single Gulp task capable of generating a one-time Browserify bundle, we enable file-watching and incremental rebuilds by incorporating Watchify. We add a second task `watch` & refactor our initial code to enable the bulk of it to be re-used. We’ll look at exactly how to ‘wire’ these tools together and how the relationship between Watchify & Browserify can manifest into a seriously efficient workflow.

Gulp and Browserify - Hooking up Watchify

We will look at bundling your JavaScript files using Gulp, Gulp-Concat, and Gulp-Uglify

Bundling Your JavaScript Files with Gulp

Jekyll is a parsing engine bundled as a ruby gem used to build static websites from dynamic components such as templates, partials, liquid code, markdown, etc. Jekyll is known as "a simple, blog aware, static site generator".

jekyll

[Jekyll](https://jekyllrb.com/) is a static site generator built in [Ruby](https://www.ruby-lang.org/en/) and available to generate and host websites on [GitHub Pages](https://pages.github.com/). In this course, you'll install the Jekyll gem, use the command line tool to generate a new project, inspect the scaffolded project, and finally, serve the starter website.

Install Jekyll and generate initial, scaffolded website

If you make a mistake when naming your database column, and have data that you want to keep unchanged. You can use the change method with the rename_column definition in your migrations files to update a single column name in your database.

Rename A Database Column with Ruby on Rails Active Record Migrations

Monica Powell, creator of React Ladies, talks through why someone would migrate from Remark to MDX before going into how to do that and what problems you might run into.

Migrating to MDX

Cole Bemis explains how MDX works by taking us though his own journey digging into what MDX does under the hood.

Demystifying MDX

Laurie Barth walks us through MDX v2's syntax by trying to break it. She starts at markdown syntax and takes us through increasingly complex applications of MDX, including passing dynamic props to .mdx files imported into other .mdx files.

MDX v2 Syntax

Jonathan Bakebwa introduces MDX support for VueJS and NuxtJS while also using Chakra UI Vue for MDX components

MDX and VueJS/NuxtJS

Prince Wilson, MDX contributor, takes us through one aspect of his personal site playground and dives deep into interactive code blocks.

Personal Site Playgrounds with MDX

Rodrigo Pombo introduces [Code Hike](https://codehike.org/) and talks through how Code Hike and MDX empower advanced scrolly telling techniques.

The X in MDX

Kathleen McMahon walks us through a real-world MDX digital garden implementation

Digital Gardening with MDX Magic

By leveraging the [dependency graph](https://nx.dev/l/r/structure/dependency-graph), [Nx](https://nx.dev) is able to understand which parts in the monorepo changed and thus trigger actions on those nodes, such as building an app, running tests or linting. This already works out of the box. However, with our portfolio application, all of our markdown articles reside in the root-level `_articles` folder. Those are not captured by the Nx dependency graph and thus Nx would not correctly detect a change to our Next.js site application whenever we change or add a new markdown article.
In this lesson, we learn how to register our `_articles` folder s.t. it appears as a dedicated node in the Nx dependency graph.

Prefer to read along as well? Here's the [accompanying article](https://blog.nrwl.io/publishing-a-next-js-app-to-vercel-with-nx-df81916548f5).

Register our Markdown Articles with the Nx Dependency Graph

**NOTE:** `workspace.json` is deprecated, you can update to `project.json` [here](https://nx.dev/deprecated/workspace-json).

One cool aspect of Next.js is its [fast refresh](https://nextjs.org/docs/basic-features/fast-refresh) support. Whenever you change some Next.js component it automatically refreshes the page without hard reloading everything. However, you might notice that whenever we change something within our MDX markdown files, fast refresh is not capturing that, hence we need to manually refresh the browser window.

In this lesson, we learn how to leverage a feature of Nx to create a "[custom Next.js development server](https://nx.dev/l/r/next/server#customserverpath)". We are going to use [chokidar](https://www.npmjs.com/package/chokidar) to watch our articles folder and then invoke a private API on the Next.js server instance to trigger a reload command.

Prefer to read along as well? Here's the [accompanying article](https://blog.nrwl.io/hot-reload-mdx-changes-in-next-js-and-nx-c05252cf450a).

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