A future (lower case “f”) is an instance of the Future (capitalized “F”) class . A future represents the result of an asynchronous operation, and can have two states: uncompleted or completed. Note: Uncompleted is a Dart term referring to the state of a future before it has produced a value.
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await is to interrupt the process flow until the async method completes . then however does not interrupt the process flow. This means that the next instructions will be executed. But it allows you to execute the code when the asynchronous method completes.
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