callback
US /ˈkɑːl.bæk/
UK /ˈkɑːl.bæk/
1.
a return telephone call
:
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I'll give you a callback as soon as I have the information.
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The customer requested a callback from technical support.
2.
a second audition for a role in a play or film
:
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She got a callback for the lead role after her first audition.
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Many aspiring actors hope for a callback after their initial tryouts.
3.
a function that is passed as an argument to another function and is executed after its parent function has completed
:
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In JavaScript, an asynchronous operation often uses a callback function.
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The API requires a callback to handle the response data.