Doubt in presentation

I didn’t get this video
what is moto I mean how can we call 1 function within another I didn’t get that

bro give me 5 minutes
i`ll let u know the exact reason

the function that are called from given function are called functors
Functors are objects that can be treated as though they are a function or function pointer. Functors are most commonly used along with STLs in a scenario like : sorting, transform stl function

A functor (or function object) is a C++ class that acts like a function. Functors are called using the same old function call syntax.

in javascript calling another function from within is called callback function

Read more about functors in c++ to get better understanding

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.