Callback are Closures?

Callback: Concept callback function are derived from functional paradigm.

A callback function is a function passed into another function as an argument, which is then invoked inside the outer function to complete some kind of routine or action.¹

Closures:

A _closure _is the combination of a function and the lexical environment within which that function was declared.²

Callback operates in two ways:

• Synchronous Callback

• Asynchronous Callback

¹. Callback Function ↩

². Closures ↩