Basic Error Handling with Types

try/catch works exactly like JavaScript — but note that a caught error's type is unknown by default in strict TypeScript, not any, so you must narrow it before accessing its properties.

try {
    JSON.parse("not valid json");
} catch (error) {
    if (error instanceof Error) {
        console.log(error.message);
    }
}

Common mistakes

• Accessing error.message directly without an instanceof Error check first — since error's type is unknown, TypeScript won't let you assume it has a .message property.