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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | 'use strict' const confusingBrowserGlobals = require('confusing-browser-globals') /** * ESLint core 'Variables' rules relate to variable declarations */ module.exports = { // enforce or disallow variable initializations at definition 'init-declarations': 'off', // disallow the catch clause parameter name being the same as a variable in the outer scope 'no-catch-shadow': 'off', // disallow deletion of variables 'no-delete-var': 'error', // disallow labels that share a name with a variable // https://eslint.org/docs/rules/no-label-var 'no-label-var': 'error', // disallow specific globals 'no-restricted-globals': ['error', 'isFinite', 'isNaN'].concat(confusingBrowserGlobals), // disallow declaration of variables already declared in the outer scope 'no-shadow': 'error', // disallow shadowing of names such as arguments 'no-shadow-restricted-names': 'error', // disallow use of undeclared variables unless mentioned in a /*global */ block 'no-undef': 'error', // disallow use of undefined when initializing variables 'no-undef-init': 'error', // disallow use of undefined variable // https://eslint.org/docs/rules/no-undefined // TODO: enable? 'no-undefined': 'off', // disallow declaration of variables that are not used in the code 'no-unused-vars': [ 'error', { vars: 'all', args: 'after-used', ignoreRestSiblings: true }, ], // disallow use of variables before they are defined 'no-use-before-define': ['error', { functions: true, classes: true, variables: true }], } |