Typescript error logger #typescript

log-error.ts

export function logError(err: unknown, context?: string) {
	// Convert to Error if it's not one
	let error: Error;
	if (err instanceof Error) {
		error = err;
	} else {
		// Wrap string in Error, but pop first line of stack (which will be this line)
		error = new Error(String(err));
		error.stack = error.stack?.split('\n').slice(1).join('\n');
	}

	const contextString = context ? ` (${context})` : '';
	const stackString = error.stack ? error.stack.split('\n').slice(1).join('\n') : '';
	const errorData = Object.keys(error).length ? { ...error } : '';

	console.error(`${error.name}: ${error.message}${contextString}\n${stackString}`, errorData);
}