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JavaScript

Posted by Kinkaid Nolen
Kinkaid Nolen
4,859 Points

Async vs Sync!!!

I understand the difference between the two conceptually, but with the physical code how do you know which is which? Any examples?

1 Answer

Steven Parker
Steven Parker
231,172 Points
Steven Parker
Steven Parker
231,172 Points

Async code is tied into the event mechanism, which can be done a variety of ways. One likely (but not guaranteed) clue is that a function which operates asynchronously will often take a callback argument, which is another function that will be used to indicate completion at a later time. An example is the built-in "setTimeout" function:

setTimeout( function () { console.log('done'); },  // <-- callback
            2000 );
Kinkaid Nolen
Kinkaid Nolen
4,859 Points

Thank You!!