tsconfig.json

{
    "compilerOptions": {
        "lib": ["dom", "ES2021"],

        // JavaScript Support
        "allowJs": true,
        "checkJs": true,
        "noEmit": true,

        // Module Settings
        "module": "ES2020",
        "moduleResolution": "node",
        "target": "ES2021",

        // Strictness
        "strict": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "strictBindCallApply": true,
        "strictPropertyInitialization": true,
        "noImplicitThis": true,
        "useUnknownInCatchVariables": true,
        "alwaysStrict": true,
        "noImplicitReturns": true,
        "noFallthroughCasesInSwitch": true,
        "noUncheckedIndexedAccess": true,
        "noImplicitOverride": true,
        "noPropertyAccessFromIndexSignature": true,

        // Additional Safety
        "forceConsistentCasingInFileNames": true,
        "skipLibCheck": true,
        "verbatimModuleSyntax": true,
        "isolatedModules": true,

        "paths": {
            "~/*": ["./src/client/resources/web/js/*"]
        }
    },
    "include": [
        "src/client/resources/web/js/**/*.js",
        "src/client/resources/web/js/**/*.mjs",
        "src/test/resources/web/js/**/*.js",
        "src/test/resources/web/js/**/*.mjs"
    ],
    "exclude": ["node_modules"]
}