<bErrorBlock>
A codeblock to execute when the operation fails.
Method AsyncResult():catch() Foundation
Chains an error handler to execute when the operation fails.
Syntax
:catch( <bErrorBlock> ) --> oAsyncResult
Parameters
Return
A new AsyncResult object representing the result of the handler.
Description
Registers a codeblock to execute when the operation completes with an error. This method implements the promise-like chaining pattern for error handling.
The error handler will receive the error object as its parameter. If the AsyncResult is already in the "error" state, the handler is executed immediately. If the AsyncResult is in the "finished" state, the handler is not executed at all.
This method returns a new AsyncResult object that represents the result of the handler. This allows for further chaining of success, error, and finalization handlers.
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