.eslintrc.js

const path = require("path");

module.exports = {
    env: {
        browser: true,
        es2021: true,
    },
    extends: [
        // Using the recommended typescript configurations
        "plugin:@typescript-eslint/recommended",

        // Prettier - last to override all other formatting rules
        "prettier",
    ],
    parser: "@typescript-eslint/parser",
    overrides: [
        {
            files: ["**/constants.ts", "**/constant.ts"],
            rules: {
                "@typescript-eslint/no-magic-numbers": ["off"],
            },
        },
    ],
    parserOptions: {
        ecmaVersion: "latest",
        project: "./tsconfig.json",
        tsconfigRootDir: __dirname,
    },
    plugins: ["@typescript-eslint"],
    ignorePatterns: ["**/build", "**/generated"],
    rules: {
        // Give the power to the people! We decided to leave this decision up to the dev.
        "@typescript-eslint/no-inferrable-types": "off",

        // We utilize namespaces and this change seems to be a matter of preference. Off for now.
        "@typescript-eslint/no-namespace": "off",

        // We want to make sure to correct for this. It can be difficult to debug when errors arise from this assertion.
        "@typescript-eslint/no-non-null-assertion": "off",

        // Enforce for cleanliness
        "@typescript-eslint/no-unused-vars": "error",

        "@typescript-eslint/ban-types": [
            "error",
            {
                types: {
                    // un-ban BigInt - It must be getting confused with the native bigInt type
                    BigInt: false,
                },
                extendDefaults: true,
            },
        ],

        // disallow magic numbers: https://eslint.org/docs/latest/rules/no-magic-numbers
        "@typescript-eslint/no-magic-numbers": [
            "error",
            {
                ignoreArrayIndexes: true,
                ignore: [-1, 0, 1, 2, 3],
            },
        ],
    },
};