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  4. Code Review
  5. ESLint vs SwiftLint

ESLint vs SwiftLint

OverviewDecisionsComparisonAlternatives

Overview

ESLint
ESLint
Stacks38.6K
Followers14.0K
Votes28
GitHub Stars26.6K
Forks4.8K
SwiftLint
SwiftLint
Stacks156
Followers105
Votes0
GitHub Stars19.3K
Forks2.3K

ESLint vs SwiftLint: What are the differences?

Introduction

ESLint and SwiftLint are widely used linting tools for JavaScript and Swift respectively. Both tools help identify and report coding errors, enforce coding standards, and improve code quality. However, there are key differences between ESLint and SwiftLint that make them unique in their own way.

  1. Configuration: ESLint allows a high level of customization through its configuration file. Developers can enable or disable specific rules, enforce coding styles, and define custom rules based on their project requirements. On the other hand, SwiftLint has a predefined set of rules that enforce best practices and coding conventions based on the Swift community style guide. Although SwiftLint allows some level of customization through its configuration file, it doesn't offer the same flexibility as ESLint.

  2. Language Support: ESLint is primarily used for linting JavaScript, but it also supports JSX, TypeScript, and other JavaScript-related languages. SwiftLint, on the other hand, is specifically designed for linting Swift code and does not support other languages. Therefore, if you are working with different programming languages within a project, ESLint would be a more versatile choice compared to SwiftLint.

  3. Integration: ESLint integrates seamlessly into various development environments and continuous integration (CI) systems. It has plugins available for popular code editors like Visual Studio Code, Sublime Text, and Atom, enabling developers to receive real-time linting feedback within their preferred editor. SwiftLint, on the other hand, has limited editor support and might require additional configuration or setup. This makes ESLint a more convenient choice for developers who prefer a smooth integration experience.

  4. Community Support: ESLint has a large and active community of contributors and users. This means that it has a wider range of available plugins, rules, and resources for developers to leverage. SwiftLint, being a more specialized tool, has a comparatively smaller community. This might result in a slightly limited range of available resources and community support.

  5. Development Environment: ESLint is mainly used in JavaScript development, which often involves web development frameworks and libraries. This makes it a popular choice for front-end and full-stack developers. On the other hand, SwiftLint is commonly used in iOS and macOS app development, as Swift is the primary language for these platforms. Therefore, the choice between ESLint and SwiftLint largely depends on the development environment and the specific programming language being used.

  6. Linting Capabilities: ESLint has a robust set of rules and provides a wide range of possible configurations. It detects various issues like unused variables, potential bugs, and problematic coding patterns. In contrast, SwiftLint focuses on enforcing a consistent style and best practices for Swift code. It specifically targets areas like indentation, naming conventions, code organization, and documentation comments. While both tools help improve code quality, their linting capabilities differ in terms of the specific issues they address.

In summary, ESLint offers more flexibility, supports a wider range of languages, and has better community support and integration options. On the other hand, SwiftLint focuses specifically on improving Swift code quality by enforcing best practices and consistent coding styles. Both tools have their own strengths and are suited for specific programming environments and requirements.

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Advice on ESLint, SwiftLint

Carlos
Carlos

Mar 14, 2020

Needs adviceonPrettierPrettierESLintESLintgulpgulp

Scenario: I want to integrate Prettier in our code base which is currently using ESLint (for .js and .scss both). The project is using gulp.

It doesn't feel quite right to me to use ESLint, I wonder if it would be better to use Stylelint or Sass Lint instead.

I completed integrating ESLint + Prettier, Planning to do the same with [ Stylelint || Sasslint || EsLint] + Prettier.

And have gulp 'fix' on file save (Watcher).

Any recommendation is appreciated.

465k views465k
Comments
Alex
Alex

Software Engineer

Aug 7, 2020

Review

you don't actually have to choose between these tools as they have vastly different purposes. i think its more a matter of understanding how to use them.

while eslint and stylelint are used to notify you about code quality issues, to guide you to write better code, prettier automatically handles code formatting (without notifying me). nothing else.

prettier and eslint both officially discourage using the eslint-plugin-prettier way, as these tools actually do very different things. autofixing with linters on watch isnt a great idea either. auto-fixing should only be done intentionally. you're not alone though, as a lot of devs set this up wrong.

i encourage you to think about what problem you're trying to solve and configure accordingly.

for my teams i set it up like this:

  • eslint, stylelint, prettier locally installed for cli use and ide support
  • eslint config prettier (code formatting rules are not eslints business, so dont warn me about it)
  • vscode workspace config: format on save
  • separate npm scripts for linting, and formatting
  • precommit hooks (husky)

so you can easily integrate with gulp. its just js after all ;)

159k views159k
Comments

Detailed Comparison

ESLint
ESLint
SwiftLint
SwiftLint

A pluggable and configurable linter tool for identifying and reporting on patterns in JavaScript. Maintain your code quality with ease.

It is a tool to enforce Swift style and conventions, loosely based on GitHub's Swift Style Guide.It hooks into Clang and SourceKit to use the AST representation of your source files for more accurate results.

-
automatically correct certain violations; supports nesting configuration files
Statistics
GitHub Stars
26.6K
GitHub Stars
19.3K
GitHub Forks
4.8K
GitHub Forks
2.3K
Stacks
38.6K
Stacks
156
Followers
14.0K
Followers
105
Votes
28
Votes
0
Pros & Cons
Pros
  • 8
    Consistent javascript - opinions don't matter anymore
  • 6
    Free
  • 6
    IDE Integration
  • 4
    Customizable
  • 2
    Focuses code review on quality not style
No community feedback yet
Integrations
JavaScript
JavaScript
Xcode
Xcode
Jenkins
Jenkins
macOS
macOS

What are some alternatives to ESLint, SwiftLint?

Code Climate

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.

Codacy

Codacy

Codacy automates code reviews and monitors code quality on every commit and pull request on more than 40 programming languages reporting back the impact of every commit or PR, issues concerning code style, best practices and security.

Phabricator

Phabricator

Phabricator is a collection of open source web applications that help software companies build better software.

PullReview

PullReview

PullReview helps Ruby and Rails developers to develop new features cleanly, on-time, and with confidence by automatically reviewing their code.

Gerrit Code Review

Gerrit Code Review

Gerrit is a self-hosted pre-commit code review tool. It serves as a Git hosting server with option to comment incoming changes. It is highly configurable and extensible with default guarding policies, webhooks, project access control and more.

SonarQube

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.

RuboCop

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.

CodeFactor.io

CodeFactor.io

CodeFactor.io automatically and continuously tracks code quality with every GitHub or BitBucket commit and pull request, helping software developers save time in code reviews and efficiently tackle technical debt.

Amazon CodeGuru

Amazon CodeGuru

It is a machine learning service for automated code reviews and application performance recommendations. It helps you find the most expensive lines of code that hurt application performance and keep you up all night troubleshooting, then gives you specific recommendations to fix or improve your code.

Reviewable

Reviewable

A code review tool for GitHub pull requests inspired by Google's internal tool. Powerful diffing and workflow features wrapped in a beautiful UI, with seamless GitHub integration. Free for public repos.

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