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When Mojo needs to (say ...) "get a URL," it will "call back" to a subroutine that you provided (within your own application, not Mojo) for that purpose. To accomplish this, you are providing a reference to the particular subroutine within your application that you want to be called. Mojo then calls your subroutine by means of that reference, as other Monks have already shown.

In reply to Re: Trying to Understand Callback(s) by Anonymous Monk
in thread Trying to Understand Callback(s) by DanielSpaniel

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