Resources for Web Developers in 2022

In Introduction to Python, we will start at the beginning: Installing python 3 and using virtual environments. With a working environment, we will learn how to manipulate strings and numbers, and gain working knowledge of data structures and flow control. We will build on that by introducing modules and classes and learn how to interact with our python applications using command line switches, console input and files.

At the end of this course, you’ll have a great working knowledge of Python, fully capable of creating your own Python projects from scratch or jumping into an existing application with the capability to read, understand, and contribute to the application.

Check out these [**community notes for this course on Github**](https://github.com/eggheadio-projects/introduction-to-the-python-3-programming-language-notes).

Python is a widely used dynamically typed programming language. It allows for many different programming paradigms including object-oriented, imperative, functional programming, and procedural styles.

python

Introduction to the Python 3 Programming Language

Dynamic data gives us the opportunity to build dynamic components. Dynamic components are reusable and make building large-scale applications so much easier. In this course, Juri Stumpflohner will take us through the specific use case of of creating a tabbed component which allows us to dynamically define new tabs.

On our journey of implementing this component we will learn about how we can dynamically instantiate components, leveraging the `ComponentFactoryResolver` and `ViewContainerRef`.

Furthermore we will explore how to define view templates, how to pass them to our dynamically instantiated components as well as how to pass data into those templates. All of this will be powered by `ngTemplateOutlet` and `ngTemplateOutletContext`.

Angular is a development platform for creating applications using modern web standards. Angular includes a wealth of essential features such as mobile gestures, animations, filtering, routing, data binding, security, internationalization, and beautiful UI components. It's extremely modular, lightweight, and easy to learn.

angular

Create Dynamic Components in Angular

Once you’ve nailed the fundamentals of React, that’s when things get really fun.

This course teaches you advanced patterns in React that you can use to make components that are simple, flexible, and enjoyable to work with. 

You'll start with a simple `<Toggle />` component that you'll progressively refactor to each of the patterns. Throughout the course, you’ll see the benefits of each pattern and how they can be mixed-and-matched to make your components more useful (and simple for everyone who comes across them).

Kent C. Dodds has built and shipped components using each of these patterns. Along the way, he will help you understand and weigh the trade-offs of each pattern so you’ll intuitively know where to apply each of them in your own components. 

You’ll finish the course with a list of actionable things you can do, right away, to rework the components that you're building. You’ll complete the course more knowledgeable about React components and equipped to make your components more simple.

Note: This course covers **class component patterns** and is still interesting and valuable for the serious React developer, but for most current apps you'll probably want to use [React Hooks](httsp://next.egghead.io/q/q=hooks).

React is one of the web’s most popular frameworks for building JavaScript applications. 

If you know what you’re doing, React can drastically simplify how you build, use, and maintain code.

Whether you’re a React newbie or you’re ready for advanced techniques, you can level-up with egghead. Explore our in-depth courses, lessons, and community resources to build more powerful applications and crack open your career.

react

React Class Component Patterns

React 16.8.1 was just released, and hooks are finally stable! If you have literally 12 minutes to spare, you can learn how to use hooks (useState, useEffect and useMemo) as well as brand new React features such as React.lazy and React.memo.

Enjoy!

Learn React hooks, lazy, and memo API

JavaScript (and webdev in general) is surprisingly broad, there's ALWAYS something to learn. There are so many handy tips & tricks in the language and learning even a couple of those will make you a better JS developer.



JavaScript® (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.

javascript

JavaScript Handy Tips & Tricks

***Note: RxJS imports have changed since the publication of this course. Operators now must be passed into `.pipe` to be applied to an observable.***

In this course we will begin with nothing more than an empty directory & a text editor. Through small, focussed lessons we’ll learn how to setup a React project that uses Redux for state management and redux-observable for asynchronous actions. We’ll see how ‘epics’ are registered and how they each receive a ‘stream’ of actions from the store. 

With an understanding of how things work, we’ll move onto solving common problems such as Ajax cancellation, creating sequences of async actions, enabling code reuse through higher-order Observables and much more. 

## **UPDATE:** 
This course is outdated, view updated material here: [Asynchronous State Management with redux-observable v1](https://egghead.io/courses/asynchronous-state-management-with-redux-observable-v1)

Up and Running with redux-observable

Introduced in React 16.8, Hooks are a new way to write stateful components while avoiding the pitfalls of classes. 

As a result, GraphQL developers everywhere wanted to use them for their Apollo Client components, instead of relying on render props pattern. In August of 2019 things have changed and Apollo Client now has official support for React hooks, by providing `useQuery`, `useLazyQuery`, `useMutation` and `useSubscription` hooks.

If you'd like to learn how to use them, this playlist is for you!

Learn Apollo Client Hooks

Managing state in modern web applications is hard. As applications grows in complexity, keeping track of state changes and mapping those changes back to your UI becomes increasingly difficult.

One way data flow makes managing state more approachable and lightens the cognitive load required to follow the flow of data through your application. Using Redux takes this idea to the next level and moves the state and the state changes and centralizes them in a global store, managed with pure reducer functions.

In this course you will learn how to build a production quality React application using Redux. We will build up from using redux by itself, so we can understand the core API and how that interacts with a React application, then we’ll move on to introduce `react-redux` to abstract away some of the underlying details and clean up our code. We’ll use middleware and a mocked API server to understand how asynchronous code fits into the Redux model and we’ll even deploy our finished work so we can see it running live in the cloud. 

If you are brand new to React, you’ll want to read the documentation and watch our free [React Fundamentals](https://egghead.io/courses/start-using-react-to-build-web-applications) course and our [Build Your First Production Quality React App](https://egghead.io/courses/build-your-first-production-quality-react-app) course. To get up to speed on Redux, you should check out Dan Abramov’s [Getting Started With Redux](https://egghead.io/courses/getting-started-with-redux) course.

Build A React App With Redux

No matter what type of app you’re building, you're going to need to fetch data, display it to a user, and enable the user to interact with and update that data. This interaction and updating phase is often asynchronous by nature which presents you, the developer, an opportunity to provide a range of different experiences depending on the scenario.

In some instances, you can leverage what is known as optimistic UI updates for an improved, snappier user experience compared to a traditional “loading/waiting” experience. They aren’t suited for every use case, but selectively making use of optimistic UI updates throughout your application can have a significant impact on the quality of user experience for relatively little cost and complexity!

In this course, we’ll walk through implementing optimistic UI updates in the real world example of liking and unliking a tweet. We'll use React's built-in state and make use of extracting setState updater functions to help manage and better define our setState usages. 

Optimistic UI Updates in React

Dealing with stateful computations can be a challenge when writing purely functional JavaScript.
They can result in undesired variable declaration at best and boilerplate state management code
in every function dependent on the state at its worst.

In this course we will explore a well know Algebraic Data Type named State, that is built from
the ground up to address these 🌽cerns. While this course will be focused around a State
implementation provided by a library named [`crocks`](https://www.npmjs.com/package/crocks),
a majority of the techniques we learn here can be used with most of the State implementations
in the wild.

State Monad in JavaScript

When setting up a modern JavaScript app, we find ourselves trudging through the land of infinite configuration. Poi offers us an option of zero-configuration by providing sane defaults and hiding them away until you need to tweak a change to suit your needs.

webpack is a tool to build JavaScript modules in your application. To start using webpack from its cli or api, follow the Installation instructions. webpack simplifies your workflow by quickly constructing a dependency graph of your application and bundling them in the right order. webpack can be configured to customise optimisations to your code, to split vendor/css/js code for production, run a development server that hot-reloads your code without page refresh and many such cool features.

webpack

Make Webpack Easy with Poi

React Native Video is a community supported video element for React Native. It allows for remote loading of videos and also works with the React Native asset management system to load videos. Having a flexible video component is essential to developing and enhancing your application.
Like many React Native elements, the video element is very basic and doesn't ship with anything besides a flexible API. This allows you to develop the exact layout, controls, and custom overlays to match your application.

In this course we'll take a look at a basic setup. Then explore the different ways we can load and show videos. We'll show how to use a few of the custom callbacks to overlay errors and buffering elements. Because there are no controls shipped with `react-native-video` we'll show how to write custom video controls and animate them when the video has not been interacted with.

Finally we'll cover a few common paradigms found in the wild. Including repeating background cover videos, auto-playing videos when they scroll onto the screen and auto-stopping them when they are scrolled away from.

React Native lets you build mobile apps using only JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative components.

react-native

Fundamentals of React Native Video

With the release of the React Hooks API, it is now possible to store state in functional components. In this playlist, we'll take an initial look at the `useState` hook as well as a few others. In one of the later lessons, we'll build a custom hook, a tool for easily sharing functionality with more that one component.

An Introduction to React Hooks

A lot of the time, web apps are built primarily with the desktop layout in consideration, and the mobile layout suffers as a result. In this course we are going to discuss using features of user interface which are optimised for mobile devices.

We are going to discuss CSS features that make a big difference and build entire components that work great on mobile devices and browsers. We are going to take into account browser support to ensure our users are getting the experience we want them to.

More and more of our users depend on their mobile device to use our web apps. With this in mind, we are going to look at how to optimise the components we build for smaller viewports, and how to ensure our customer gets an optimised version of our web app for their device.

We are going to discuss different ways we can view, test, and debug our web app in a mobile setting so that we know what we are seeing is what our user is seeing, because sometimes a desktop browser emulating a mobile device just isn’t enough.


HTML 5 is the structure of our web pages. It is the markup that represents the DOM (document object model).

html

Optimize User Experience for Mobile Devices and Browsers

In [Use TypeScript to Develop Vue.js Web Applications](https://egghead.io/courses/use-typescript-to-develop-vue-js-web-applications) we’ve seen how TypeScript Vue apps development by creating class based components and using decorators.

This course will extend it, showing you how you can use Vuex with TypeScript in order to manage the state of your Vue app. We’ll see how to type-safe your store, organize the state in modules, modify it using mutations and actions and write Vuex plugins, all by creating a beer shop app throughout the course.

Vue (pronounced /vjuː/, like view) is a progressive framework for building user interfaces. Unlike other monolithic frameworks, Vue is designed from the ground up to be incrementally adoptable. The core library is focused on the view layer only, and is very easy to pick up and integrate with other libraries or existing projects. On the other hand, Vue is also perfectly capable of powering sophisticated Single-Page Applications when used in combination with modern tooling and supporting libraries.

Vue.js State Management with Vuex and TypeScript

Forms are difficult in React.

Luckily, there are many solutions that allow us to create React forms more easily, such as [React Final Form](https://github.com/final-form/react-final-form) created by [Erik Rasmussen](https://twitter.com/erikras).

React Final Form is a high performance subscription-based form state management for React which is not only extremely powerful, but also lightweight (3.0k gzipped!) and easy to use.

Create forms in React applications with React Final Form

This course walks you through the steps of creating a News web app using Vue.js and the Nuxt framework. You will learn how to create dynamic pages for each section of your application and load, store, display, filter, and style the data. Then end result will be a News app with multiple category pages, comments for each section, and user pages.

Create a News App with Vue.js and Nuxt

In this course we will explore the possibilities to bring VR to the Web using React VR. Each lesson focuses on one specific concept or component that comes with React VR. This guide covers a large surface area of experiences like teleporting a user to a recorded 360° experience as well as placing them in virtual worlds. Even a combination of both is possible. Each lesson is independent, but some require knowledge explained in a previous lesson.

Build Virtual Reality Experiences Using React VR

Artificial intelligence. Machine learning. Bots. Computers learning and communicating with us to do our bidding. But, where do you start? How do you get a machine to even begin to understand what you speak or type at it? There are several common machine learning algorithms that will help us begin to answer these questions.

In this course we’ll learn about common machine learning algorithms that don’t require implementing a neural network. We will not be going too much into the math behind them, but instead learn what each algorithm is good for, and how to train them. We'll also learn about a few metrics for evaluating models.

We’ll implement these in Python using `scikit-learn` using `scikit-learn`’s built-in data sets. The focus of this course is on implementation and a high-level understanding of these algorithms. 

We'll look at a few ways to evaluate our models, for both classification and regression models. We'll touch on mean squared error and coefficient of determination (for regression), and accuracy score, logarithmic loss, confusion matrices, and classification reports (for classification). 

Python 2.7 is used in the lesson videos but the code provided has Python 3 available. The only breaking change is the `print` statement API.

For additional information on installation, vocabulary, and common errors visit the `README.md` to the course code attached to each lesson.

Simple and efficient tools for data mining and data analysis

scikit-learn

Introductory Machine Learning Algorithms in Python with scikit-learn

Algorithms are the basic construction of the computer programs that you are writing every day. They take language syntax and the machine uses that information to carry out our commands. While "everything is an algorithm!" is basically a true statement, we also have quite a bit of thought and effort put into defining formal algorithms. Understanding these formal algorithms helps you as a developer so that you won't need to re-invent the wheel every time you sit down to solve a problem.

They also come up quite a bit as "whiteboard problems" in programming job interviews, so understanding algorithms is a big win for you as a coder.

You will review many common algorithms using [TypeScript](/q/typescript) as the language. Even if you don't prefer TypeScript, they will easily translate into [JavaScript](/q/javascript) or practically any other language

TypeScript is a typed superset of JavaScript that compiles to plain JavaScript.

typescript

Build Algorithms using Typescript

In this course, we will incorporate [react-intl](https://github.com/yahoo/react-intl) into a project created with [create-react-app](https://github.com/facebookincubator/create-react-app) and [react-router](https://github.com/ReactTraining/react-router). The react-intl library makes complex tasks such as internationalization and formatting dates & currency incredibly simple. Another huge benefit of react-intl is that it gives you the ability to centralize the content across your application into language specific files. This creates a consistent place to find content and encourages reuse. If you’ve ever used language specific `yml` files in Rails, you’re already familiar with this pattern.

Starting with the entry point of the application, we will hit the ground running by adding the necessary components and data structures required for `react-intl` to function. From there, we will use `react-intl` components to format various types of data including strings, dates, and numbers. We will also work through writing tests for components that include `react-intl` components using Jest and enzyme.