Build an Instagram Clone with React Native, Firebase Firestore, Redux, and Expo
Recreating a popular app is a fun way to learn a lot of complex programming skills. We've released a full course on the freeCodeCamp.org YouTube channel that will teach you how to build an Instagram clone using React Native, Firebase Firestore, Firebase storage, Redux, and Expo. The app includes an authentication system, database, storage, and more. SimCoder created this course. He's taught dozens
Exploring a powerful SQL pattern: ARRAY_AGG, STRUCT and UNNEST
by Lak Lakshmanan Exploring a powerful SQL pattern: ARRAY_AGG, STRUCT and UNNESTIt can be extremely cost-effective (both in terms of storage and in terms of query time) to use nested fields rather than flatten out all your data. Nested, repeated fields are very powerful, but the SQL required to query them looks a bit unfamiliar. So, it’s worth spending a little time with STRUCT, UNNEST and ARRAY_A
Here are examples of everything new in ECMAScript 2016, 2017, and 2018
by rajaraodv Here are examples of everything new in ECMAScript 2016, 2017, and 2018It’s hard to keep track of what’s new in JavaScript (ECMAScript). And it’s even harder to find useful code examples. So in this article, I’ll cover all 18 features that are listed in the TC39’s finished proposals that were added in ES2016, ES2017, and ES2018 (final draft) and show them with useful examples. This is
How to escape async/await hell
async/await freed us from callback hell, but people have started abusing it — leading to the birth of async/await hell. In this article, I will try to explain what async/await hell is, and I’ll also share some tips to escape it. What is async/await hellWhile working with Asynchronous JavaScript, people often write multiple statements one after the other and slap an await before a function call. Th
Scaling your Redux App with ducks
How does your front-end application scale? How do you make sure that the code you’re writing is maintainable 6 months from now? Redux took the world of front-end development by storm in 2015 and established itself as a standard — even beyond the scope of React. At the company where I work, we recently finished refactoring a fairly large React codebase, adding redux instead of reflux. We did it bec
Elegant patterns in modern JavaScript: RORO
I wrote my first few lines of JavaScript not long after the language was invented. If you told me at the time that I would one day be writing a series of articles about elegant patterns in JavaScript, I would have laughed you out of the room. I thought of JavaScript as a strange little language that barely even qualified as “real programming.” Well, a lot has changed in the 20 years since then. I
Express.js and AWS Lambda — a serverless love story
by Slobodan Stojanović Express.js and AWS Lambda — a serverless love storyIf you are a Node.js developer or you’ve built an API with Node.js, there’s a big chance you used Express.js. Express is de facto the most popular Node.js framework. Express apps are easy to build. For a simple app, you just need to add a few routes and route handlers. That’s it. A simple, traditionally hosted Express.js app
How to write reliable browser tests using Selenium and Node.js
by Todd Chaffee How to write reliable browser tests using Selenium and Node.jsThere are many good articles on how to get started with automated browser testing using the NodeJS version of Selenium. Some wrap the tests in Mocha or Jasmine, and some automate everything with npm or Grunt or Gulp. All of them describe how to install what you need, along with giving a basic working code example. This i
A Million WebSockets and Go
by Sergey Kamardin A Million WebSockets and GoHi everyone! My name is Sergey Kamardin and I’m a developer at Mail.Ru. This article is about how we developed the high-load WebSocket server with Go. If you are familiar with WebSockets, but know little about Go, I hope you will still find this article interesting in terms of ideas and techniques for performance optimization. 1. IntroductionTo define
REST APIs are REST-in-Peace APIs. Long Live GraphQL.
Update: This article is now part of my “Complete Introduction to GraphQL”.Read the updated version of this content and more about GraphQL at jscomplete.com/why-graphql.After years of dealing with REST APIs, when I first learned about GraphQL and the problems it’s attempting to solve, I could not resist tweeting the exact title of this article. Of course, back then, it was just an attempt by me at
A Vue.js introduction for people who know just enough jQuery to get by
by Matt Rothenberg A Vue.js introduction for people who know just enough jQuery to get byThe logo for Vue.jsI’ve had a love-hate relationship with JavaScript for years. I got to know the language by way of the design and development community’s favorite whipping boy, jQuery. You see, at the time I began learning JavaScript, as a “Designer who codes,” working with jQuery was a magical experience. I
How to construct a design system
by Colm Tuite How to construct a design systemTips for designing and building a consistent design system.Without doubt, I get asked about design systems more than anything else. So, having spent the majority of the past few years thinking about how to design, build and present design systems for products like Marvel, Bantam and Modulz, I figured I’d share some of what I’ve learned along the way. W
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
How to Build a photo feed with Go and Vue.js