Also note that async is not a reserved keyword. You can redefine it if you wish. It is an instance of AsyncBuilderImpl.
In F#, 'async' is one of the better-known applications of what's known as a workflow; these workflows are used to build computation expressions. The 'seq { }' syntax is also implemented as a workflow.
You can define a custom "Builder" type -- which is just a normal type with some specially-named methods to define your own workflows.
If you want to read more about defining your own workflows, you can find some background information on MSDN:
Computation Expressions (F#)
Asynchronous Workflows (F#)
Thanks Jack.
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Hi all.
I have a question regarding async keyword.
What is it exactly, an operator, a block definition?
Is it possible to define such custom code blocks, or what ever they are, for some purposes?
Thanks and best regards.