.eslintrc.json

{
    "parser": "@typescript-eslint/parser",
    "plugins": [
        "@typescript-eslint"
    ],
    "parserOptions": {
        "ecmaVersion": 2018,
        "sourceType": "module"
    },
    "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:import/recommended",
        "plugin:import/typescript",
        "prettier"
    ],
    "env": {
        "es6": true,          // es6 global variables
        "browser": true,      // browser global variables.
        "node": true        // Node.js global variables and Node.js-specific rules.
    },
    "rules": {
        "curly": "error",                 // specify curly brace conventions for all control statements
        "no-eval": "error",               // disallow use of eval()
        "no-extend-native": "error",      // disallow adding to native types
        "no-new-wrappers": "error",       // disallows creating new instances of String, Number, and Boolean
        "no-with": "error",               // disallow use of the with statement
        "no-shadow": "error",               // disallow variable from shadowing variables declared in the outer scope
        "eqeqeq": ["warn", "smart"],      // https://eslint.org/docs/rules/eqeqeq#smart
        "prefer-const": "error",
        "no-array-constructor": "error",             // disallow use of the Array constructor
        "no-new-object": "error",                    // disallow use of the Object constructor
        "dot-notation": "error",
        // when complexity gets to high it's likely a function that needs to be refactored
        "complexity": ["warn", {"max": 20}], // https://eslint.org/docs/rules/complexity
        // Debugging
        "no-alert": "error"
    },
    "overrides": [
        {
            "files": ["*.test.ts"],
            "rules": {
                "@typescript-eslint/no-non-null-assertion": 0
            }
        }
    ],
    "settings": {
        "import/resolver": {
            "typescript": true,
            "node": true
        }
    }
}