1. A programming mechanism where an asynchronous operation finishes execution and triggers a callback, promise resolution, or event notification to indicate completion
The async completion of the file download allowed the application to continue processing other tasks.
A conclusão assíncrona do download do arquivo permitiu que a aplicação continuasse processando outras tarefas.
2. In concurrent programming, the signal or notification that an asynchronous task has finished execution
The async completion handler updated the user interface when the API request finished.
O manipulador de conclusão assíncrona atualizou a interface do usuário quando a requisição da API foi concluída.