Question 1

How to handle for loops with eslint-plugin-immutable?

Accepted Answer

The plugin recommends replacing loops with Array methods like map or filter, or using lodash for complex iterations, as mentioned in the no-let rule examples to avoid let declarations.

Question 2

eslint-plugin-immutable vs Immutable.js – which is better?

Accepted Answer

eslint-plugin-immutable enforces immutability at lint time with no runtime cost, ideal for Redux/React apps, while Immutable.js provides persistent data structures with update methods. Choose based on whether you need compile-time checks or runtime data handling.

Question 3

Can I use eslint-plugin-immutable with TypeScript?

Accepted Answer

Yes, but you'll need to configure ESLint for TypeScript and ensure compatibility; the plugin targets JavaScript, so TypeScript-specific features might require additional linting rules or adjustments.

Question 4

How to optimize React components without this and lifecycle methods?

Accepted Answer

Use libraries like recompose to apply optimizations such as pure or onlyUpdateForKeys to stateless functional components, as suggested in the no-this rule section for efficient rendering.

Question 5

What are alternatives to object mutation in JavaScript?

Accepted Answer

Use object spread syntax (e.g., { ...point, x: 99 }) or functional libraries like lodash/fp for immutable updates, enabled via Babel plugins as recommended in the README for ES2016+ compatibility.

Question 6

Is eslint-plugin-immutable suitable for Vue or Angular projects?

Accepted Answer

While technically usable, the plugin is designed for Redux/React ecosystems; Vue and Angular have different state management patterns, so it may not align well without significant adaptation or might cause friction.

Immutable

What is Immutable?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions