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The fully pluggable JavaScript code quality tool

What is ESLint?

A pluggable and configurable linter tool for identifying and reporting on patterns in JavaScript. Maintain your code quality with ease.
ESLint is a tool in the Code Review category of a tech stack.
ESLint is an open source tool with 14.2K GitHub stars and 2.4K GitHub forks. Here’s a link to ESLint's open source repository on GitHub

Who uses ESLint?

Companies
519 companies use ESLint in their tech stacks, including SendGrid, GoSquared, and Intuit.

Developers
564 developers use ESLint.

ESLint Integrations

Why developers like ESLint?

Here’s a list of reasons why companies and developers use ESLint
ESLint Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose ESLint in their tech stack.

Johnny Bell
Johnny Bell
Sr. Software Engineer at StackShare · | 17 upvotes · 21.9K views
ESLint
Prettier
Babel
npm
Yarn
Node.js
Webpack
#ES5
#ES6

So when starting a new project you generally have your go to tools to get your site up and running locally, and some scripts to build out a production version of your site. Create React App is great for that, however for my projects I feel as though there is to much bloat in Create React App and if I use it, then I'm tied to React, which I love but if I want to switch it up to Vue or something I want that flexibility.

So to start everything up and running I clone my personal Webpack boilerplate - This is still in Webpack 3, and does need some updating but gets the job done for now. So given the name of the repo you may have guessed that yes I am using Webpack as my bundler I use Webpack because it is so powerful, and even though it has a steep learning curve once you get it, its amazing.

The next thing I do is make sure my machine has Node.js configured and the right version installed then run Yarn. I decided to use Yarn because when I was building out this project npm had some shortcomings such as no .lock file. I could probably move from Yarn to npm but I don't really see any point really.

I use Babel to transpile all of my #ES6 to #ES5 so the browser can read it, I love Babel and to be honest haven't looked up any other transpilers because Babel is amazing.

Finally when developing I have Prettier setup to make sure all my code is clean and uniform across all my JS files, and ESLint to make sure I catch any errors or code that could be optimized.

I'm really happy with this stack for my local env setup, and I'll probably stick with it for a while.

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GitHub
nginx
ESLint
AVA
Semantic UI React
Redux
React
PostgreSQL
ExpressJS
Node.js
FeathersJS
Heroku
Amazon EC2
Kubernetes
Jenkins
Docker Compose
Docker
#Frontend
#Stack
#Backend
#Containers
#Containerized

Recently I have been working on an open source stack to help people consolidate their personal health data in a single database so that AI and analytics apps can be run against it to find personalized treatments. We chose to go with a #containerized approach leveraging Docker #containers with a local development environment setup with Docker Compose and nginx for container routing. For the production environment we chose to pull code from GitHub and build/push images using Jenkins and using Kubernetes to deploy to Amazon EC2.

We also implemented a dashboard app to handle user authentication/authorization, as well as a custom SSO server that runs on Heroku which allows experts to easily visit more than one instance without having to login repeatedly. The #Backend was implemented using my favorite #Stack which consists of FeathersJS on top of Node.js and ExpressJS with PostgreSQL as the main database. The #Frontend was implemented using React, Redux.js, Semantic UI React and the FeathersJS client. Though testing was light on this project, we chose to use AVA as well as ESLint to keep the codebase clean and consistent.

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Francisco Quintero
Francisco Quintero
Tech Lead at Dev As Pros · | 7 upvotes · 12.9K views
atDev As Pros
Twist
Slack
ESLint
JavaScript
RuboCop
Heroku
Amazon EC2
Rails
Node.js

For many(if not all) small and medium size business time and cost matter a lot.

That's why languages, frameworks, tools, and services that are easy to use and provide 0 to productive in less time, it's best.

Maybe Node.js frameworks might provide better features compared to Rails but in terms of MVPs, for us Rails is the leading alternative.

Amazon EC2 might be cheaper and more customizable than Heroku but in the initial terms of a project, you need to complete configurationos and deploy early.

Advanced configurations can be done down the road, when the project is running and making money, not before.

But moving fast isn't the only thing we care about. We also take the job to leave a good codebase from the beginning and because of that we try to follow, as much as we can, style guides in Ruby with RuboCop and in JavaScript with ESLint and StandardJS.

Finally, comunication and keeping a good history of conversations, decisions, and discussions is important so we use a mix of Slack and Twist

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Josh Frye
Josh Frye
Senior Software Engineer at StackShare · | 7 upvotes · 11.1K views
atStackShare
Slack
GitHub
RuboCop
ESLint
Docker
CircleCI
#ContinuousIntegration

We use CircleCI for #ContinuousIntegration. Workflows are configured via a simple yaml file and run inside isolated Docker containers. CircleCI runs ESLint, Brakeman, and RuboCop to enforce code quality and security best practices. It integrates with GitHub and Slack to notify us of build progress and pass/failure statuses.

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Russel Werner
Russel Werner
Lead Engineer at StackShare · | 7 upvotes · 7.4K views
atStackShare
Visual Studio Code
WebStorm
ESLint
Prettier

We use Prettier because when we rebooted our front-end stack, I decided that it would be an efficient use of our time to not worry about code formatting issues and personal preferences during peer review. Prettier eliminates this concern by auto-formatting our code to a deterministic output. We use it along with ESLint and have 1st-class support in our WebStorm and Visual Studio Code editors.

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Buzz Zhang
Buzz Zhang
CTO at Qiban · | 7 upvotes · 1.7K views
at企办
Prettier
ESLint
Visual Studio Code

I use Visual Studio Code because plugins. For choosing IDE, the most important part is not IDE itself, but plugins. Some may argues that Visual Studio Code is not IDE, but I like to call it IDE, any text editor can do debug is IDE. Visual Studio Code can do it, and can use ESLint and Prettier , so it's IDE.

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ESLint Alternatives & Comparisons

What are some alternatives to ESLint?
TSLint
An extensible static analysis tool that checks TypeScript code for readability, maintainability, and functionality errors. It is widely supported across modern editors & build systems and can be customized with your own lint rules, configurations, and formatters.
Prettier
Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.
SonarQube
SonarQube provides an overview of the overall health of your source code and even more importantly, it highlights issues found on new code. With a Quality Gate set on your project, you will simply fix the Leak and start mechanically improving.
Code Climate
After each Git push, Code Climate analyzes your code for complexity, duplication, and common smells to determine changes in quality and surface technical debt hotspots.
RuboCop
RuboCop is a Ruby static code analyzer. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide.
See all alternatives

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