.eslintrc.json

{
    "root": true,
    "env": {
        "es2021": true
    },
    "ignorePatterns": ["src/public/**/*"],
    // "extends": "eslint:recommended",
    "parser": "@babel/eslint-parser",
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 12,
        "ecmaFeatures": {
            "impliedStrict": true
        }
    },
    // (first parameter of a rule) 0: off, 1: warning, 2: error
    "rules": {
        "indent": [2, 2, { "SwitchCase": 1 }],
        "linebreak-style": [2, "unix"],
        "quotes": [2, "single", { "allowTemplateLiterals": true }],
        "semi": [2, "never"],

        "array-bracket-spacing": [2, "never"],
        "arrow-spacing": 2,
        "brace-style": [2, "1tbs", { "allowSingleLine": true }],
        "block-spacing": 2,
        "comma-spacing": 2,
        "computed-property-spacing": [2, "never"],
        "func-call-spacing": 2,
        "keyword-spacing": 2,
        "key-spacing": [2, { "mode": "minimum" }],
        "object-curly-spacing": [2, "always"],
        "no-irregular-whitespace": 2,
        "no-multi-spaces": [2, {
            "exceptions": {
                "ImportDeclaration": true
            }
        }],
        "no-multiple-empty-lines": [2, { "max": 1 }],
        "no-spaced-func": 2,
        "rest-spread-spacing": [2, "never"],
        "semi-spacing": [2, {"before": false, "after": true}],
        "space-before-blocks": 2,
        "space-before-function-paren": [0, { "asyncArrow": "always" }],
        "space-in-parens": 2,
        "space-infix-ops": 2,
        "space-unary-ops": 2,
        "spaced-comment": [2, "always", {
            "block": {
                "balanced": true
            }
        }],
        "template-curly-spacing": [2, "never"],
        "template-tag-spacing": [2, "always"]
    }
}