Flat Config Migration
Migrate from .eslintrc to ESLint 9.x flat config
Overview
ESLint 9.x introduces a new "flat config" format that replaces the legacy .eslintrc.* files. All ESLint Interlace plugins support flat config natively.
Migration Steps
Remove legacy config files
Delete your existing .eslintrc.js, .eslintrc.json, or .eslintrc.yaml files.
Create eslint.config.js
Create a new eslint.config.js file in your project root:
import browserSecurity from 'eslint-plugin-browser-security';
import secureCoding from 'eslint-plugin-secure-coding';
export default [
browserSecurity.configs.recommended,
secureCoding.configs.recommended,
];Update package.json scripts
Ensure your lint script uses the new config:
{
"scripts": {
"lint": "eslint ."
}
}Legacy Config Comparison
import browserSecurity from 'eslint-plugin-browser-security';
export default [
browserSecurity.configs.recommended,
{
rules: {
'browser-security/no-insecure-url': 'error',
},
},
];{
"plugins": ["browser-security"],
"extends": ["plugin:browser-security/recommended"],
"rules": {
"browser-security/no-insecure-url": "error"
}
}