isError()
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Checks whether an unknown value is an ErrorLike object, which guarantees that it's an object that has at least two string properties: a non-empty name and message.
Signature:
function isError(value: unknown): value is ErrorLike;
Parameters
| Parameter | Type | Description |
|---|---|---|
| value | unknown | an unknown value |
Returns:
value is ErrorLike
true if the value is an ErrorLike object, false otherwise