callablevariable
nounUK /ˈkɔːləbəl ˈveəriəbl/
US /ˈkɔːləbəl ˈveriəbl/
A callable variable is a variable that holds a function you can run.
In Python, you can store a function in a callable variable and call it later.
OTHER MEANINGS
2. A variable whose value can be invoked like a function.
The event handler is a callable variable triggered on click.
3. A name bound to a function or method that can be executed.
Assign the callable variable to the button's action.
4. A reference that supports the call operation in programming.
Check that the callable variable is not null before invoking it.