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77 lines
2 KiB
JavaScript
77 lines
2 KiB
JavaScript
/**
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* Base ESLint configuration for all JavaScript/TypeScript projects
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*
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* This provides foundational rules that apply to all code:
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* - Core JavaScript best practices
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* - Common error prevention
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* - Code quality fundamentals
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*/
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import js from '@eslint/js';
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import globals from 'globals';
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/** @type {import('eslint').Linter.Config[]} */
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export const baseConfig = [
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js.configs.recommended,
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{
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languageOptions: {
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ecmaVersion: 2022,
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sourceType: 'module',
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globals: {
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...globals.browser,
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...globals.node,
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...globals.es2022,
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},
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},
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rules: {
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// ============================================
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// ERRORS - Correctness issues that must be fixed
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// ============================================
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// Prevent actual bugs
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'no-undef': 'error',
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'no-dupe-keys': 'error',
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'no-dupe-args': 'error',
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'no-duplicate-case': 'error',
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'no-unreachable': 'error',
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'no-constant-condition': 'error',
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'no-empty': ['error', { allowEmptyCatch: true }],
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// Prevent common mistakes
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'no-cond-assign': ['error', 'except-parens'],
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'no-irregular-whitespace': 'error',
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'no-unexpected-multiline': 'error',
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'use-isnan': 'error',
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'valid-typeof': 'error',
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// ============================================
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// WARNINGS - Best practices, fix when convenient
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// ============================================
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// Code quality suggestions
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'no-console': 'warn',
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'no-debugger': 'warn',
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'no-alert': 'warn',
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'prefer-const': 'warn',
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'no-var': 'warn',
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eqeqeq: ['warn', 'smart'],
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// ============================================
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// OFF - Handled by TypeScript or Prettier
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// ============================================
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// TypeScript handles these better
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'no-unused-vars': 'off', // @typescript-eslint/no-unused-vars handles this
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'no-redeclare': 'off', // @typescript-eslint/no-redeclare handles this
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// Prettier handles formatting
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indent: 'off',
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semi: 'off',
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quotes: 'off',
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'comma-dangle': 'off',
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'arrow-parens': 'off',
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'max-len': 'off',
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},
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},
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];
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export default baseConfig;
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