core.readablepromise.catch
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ReadablePromise.catch() method
Attaches a callback for only the rejection of the Promise.
Signature:
catch<TResult = never>(onrejected?: ((reason: any) => TResult | PromiseLike<TResult>) | null): Promise<T | TResult>;
Parameters
Parameter | Type | Description |
---|---|---|
onrejected | ((reason: any) => TResult | PromiseLike<TResult>) | null | (Optional) The callback to execute when the Promise is rejected. |
Returns:
Promise<T | TResult>
A Promise for the completion of the callback.