Question 1

How do I install and configure eslint-plugin-es-x?

Accepted Answer

Install via npm (npm install eslint-plugin-es-x) and add it to your ESLint configuration file. Then, enable rules in the 'plugins' array and set specific rules like 'es-x/no-bigint' to control features, referencing the documentation for detailed examples.

Question 2

eslint-plugin-es-x vs eslint-plugin-node: which one for Node.js projects?

Accepted Answer

eslint-plugin-es-x focuses on ECMAScript syntax control across all environments, while eslint-plugin-node is tailored for Node.js-specific APIs and compatibility. Use eslint-plugin-es-x if you need granular syntax management, but combine both for full Node.js project linting.

Question 3

Can I use eslint-plugin-es-x with TypeScript and @typescript-eslint?

Accepted Answer

Yes, but it may require careful configuration. Since TypeScript handles its own syntax parsing, ensure ESLint is set up to use the TypeScript parser, and note that eslint-plugin-es-x rules might overlap or conflict with TypeScript's built-in checks.

Question 4

Does eslint-plugin-es-x support the latest ES2023 features?

Accepted Answer

It aims to support features as they reach Stage 4 in TC39 proposals, with updates tied to ECMAScript snapshots. Check the documentation or changelog for specific version support, as minor releases add new rules for Stage 4 features.

Question 5

How to disable optional chaining in my project?

Accepted Answer

Enable the rule 'es-x/no-optional-chaining' in your ESLint config. This will flag usage of optional chaining syntax (e.g., obj?.prop) with a descriptive error, helping enforce compatibility or coding standards as per the plugin's granular control.

Question 6

Is eslint-plugin-es-x compatible with ESLint 9 or newer versions?

Accepted Answer

Compatibility depends on the plugin's updates. Since it follows ESLint's semantic versioning policy, check the npm version or release notes for support. As of now, it's maintained by the eslint-community, so likely kept up-to-date with ESLint changes.

es-x

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