tsconfig.json

// A base configuration for src and tests, and also the config
// Visual Studio Code reads
{
    // Compiler options are mostly for the sub-configurations
    "compilerOptions": {
        // ES2019 support is pretty broad for Browsers, except for Function.prototype.toString, which is just not
        // likely to be a problem
        // ES2020 is very well supported in modern browsers.
        // ES 2021 has a couple of features not supported in Opera, but they're WeakRef and Promise.any.
        // It is safe to assume those features won't be run on a browser.
        // "lib": ["dom", "es2021"],
        "lib": ["dom", "es2021"],
        "incremental": true,
        "module": "commonjs",
        "strict": true,
        "noImplicitAny": true,
        "noImplicitOverride": true,
        "noImplicitReturns": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "removeComments": true,
        "preserveConstEnums": true,
        "skipLibCheck": true,
        "target": "es2021",
        "types": ["node"],
        "moduleResolution": "node",
        "resolveJsonModule": true,
        "allowUnreachableCode": false,
        "baseUrl": ".",
        "paths": {
            "@/*": ["./src/*"]
        },
        "plugins": [
            { "transform": "transformer-module" },
        ]

    },
    // This gives the VS Code IDE its magic.
    "include": [
        "**/*.ts",
    ],
}