Registry / testing / eslint-config-cesium

eslint-config-cesium

library11.0.1jsnpmunverified

Official ESLint shareable configs for Cesium ecosystem. Version 11.0.1 requires ESLint 9.x and uses flat config format exclusively. Published monthly, maintained by Cesium team. Exports three configs: 'recommended' (base rules extending @eslint/js and eslint-config-prettier), 'browser' (browser globals), and 'node' (extends plugin:n/recommended). Key differentiator: Cesium-specific rules tailored for geospatial JavaScript in browser and Node.js environments. Active development with regular updates aligned with Cesium releases, supporting ESLint 9 flat config only.

testing

npm install eslint-config-cesium

package ↗homepage ↗

INSTALL

IMPORT

SIG · ESLINT-CONFIG-CESI

eslint-config-cesium

testingjavascriptv11.0.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

configCesium

✓ import configCesium from 'eslint-config-cesium'

✗ const configCesium = require('eslint-config-cesium')

ESM default export; CommonJS require() not supported since v11 (flat config only)

configCesium.configs.recommended

✓ import configCesium from 'eslint-config-cesium'; configCesium.configs.recommended

✗ import { configs } from 'eslint-config-cesium'

configs is nested inside default export; direct named import fails.

configCesium.configs.browser

✓ import configCesium from 'eslint-config-cesium'; configCesium.configs.browser

Use browser config for client-side code; includes browser globals.

configCesium.configs.node

✓ import configCesium from 'eslint-config-cesium'; configCesium.configs.node

Use node config for Node.js code; extends eslint-plugin-n recommended.

Shows minimal flat config setup: install peer deps, import default config, export array with recommended config and custom overrides.

// Install peer dependencies first npm install --save-dev eslint @eslint/js eslint-config-prettier eslint-plugin-n globals // Install eslint-config-cesium npm install --save-dev eslint-config-cesium // eslint.config.js import configCesium from 'eslint-config-cesium'; export default [ configCesium.configs.recommended, { rules: { 'no-console': 'warn', }, }, ];

Debug

Known issues

breakingVersion 11 drops support for legacy eslintrc format (v9 flat config only). Previous versions used .eslintrc.

fix

Migrate to flat config; remove .eslintrc files. See ESLint v9 migration guide.

affects: >=11.0.0

breakingPeer dependencies changed in v11: requires eslint ^9.0.0, @eslint/js ^9.0.0, eslint-config-prettier ^9.0.0, eslint-plugin-n ^17.0.0, globals ^15.0.0.

fix

Update all peer deps to specified versions. npm install --save-dev eslint@^9.0.0 ...

affects: >=11.0.0

gotchaConfigs are accessed as properties of the default export, not as named exports. import { configs } will be undefined.

fix

Use import configCesium from 'eslint-config-cesium'; then configCesium.configs.recommended.

affects: >=10.0.0

gotchaDo not forget to install peer dependencies; they are not installed automatically by npm in v7+ unless using --legacy-peer-deps.

fix

Run npm install with --legacy-peer-deps or manually install peer dependencies as devDependencies.

affects: >=10.0.0

Errors

Common errors & fixes

Error [ERR_REQUIRE_ESM]: require() of ES Module /path/node_modules/eslint-config-cesium/index.js from /path/.eslintrc.js not supported.

Attempting to use CommonJS require() on an ESM-only flat config package.

fix

Use import syntax and rename .eslintrc.js to eslint.config.js (flat config). If must use require, downgrade to eslint-config-cesium@^10.0.0.

Error: Failed to load config 'eslint-config-cesium' to extend from.

Missing peer dependency (e.g., eslint-config-prettier not installed or mismatched version).

fix

Ensure all peer dependencies are installed: npm install eslint@^9.0.0 @eslint/js@^9.0.0 eslint-config-prettier@^9.0.0 eslint-plugin-n@^17.0.0 globals@^15.0.0 --save-dev

TypeError: Cannot read properties of undefined (reading 'recommended')

Trying to access configCesium.configs but configCesium is undefined due to incorrect import.

fix

Check import: use 'import configCesium from "eslint-config-cesium"' not destructured import.

Error: .eslintrc.js is not a valid ESLint configuration file. You may need to rename it to eslint.config.js.

ESLint v9 no longer supports .eslintrc files; you must use eslint.config.js.

fix

Rename .eslintrc.* to eslint.config.js and rewrite config in flat config format.

Upgrade

Version history

11.0.1latest on npm

Audit

Dependencies

eslintrequiredpeer dependency; core linting engine

@eslint/jsrequiredpeer dependency; provides recommended ESLint rules

eslint-config-prettierrequiredpeer dependency; disables conflicting Prettier rules

eslint-plugin-noptionalpeer dependency; provides Node.js rules

globalsrequiredpeer dependency; provides global variables for browser/node

Agent activity

2 hits · last 30 days

node

Resources

packagehttps://www.npmjs.com/package/eslint-config-cesium ↗

homepagehttps://cesium.com ↗