3 declarations
(value: unknown, fallback?: string | undefined): string import {to_error_message} from '@fuzdev/fuz_util/error.js'; Extract a human-readable message from an unknown thrown value. Returns
value.message when value is an Error, otherwise fallback
(defaulting to String(value)).
valueunknownfallback?string | undefinedstring (value: never, message?: string | undefined): asserts value is never import {unreachable} from '@fuzdev/fuz_util/error.js'; Beyond terseness, this is useful because throw is not an expression,
and therefore can't be used in places like Svelte markup without a workaround,
at least until this proposal is accepted and widely available:
https://github.com/tc39/proposal-throw-expressions
valuenevermessage?string | undefinedvoid import {UnreachableError} from '@fuzdev/fuz_util/error.js'; Error for asserting unreachable code paths in TypeScript. Useful for exhaustive matching.
Errorconstructortype new (value: never, message?: string, options?: ErrorOptions | undefined): UnreachableError
valuenevermessagestring`Unreachable case: ${value}`options?ErrorOptions | undefined