TypeError

Code

RUNTIME/TYPE_ERROR

What it means

A JavaScript/TypeScript runtime TypeError was caught and normalized into AppError.

When it happens

• TypeError is normalized into AppError.

Typical scenarios:

• Accessing properties on null/undefined
• Calling a non-function
• Using invalid arguments for built-in APIs

How to handle

• Treat as a bug signal. Capture meta.via at the boundary where you call AppError.ensure().
• In production, avoid crashing the whole app: show a generic error overlay and record diagnostics.