Objects are the physical instantiation of the Class definition

A group of things of the same kind that belong together. In computer science, a set is an abstract data type that can store unique values, without any particular order.

KISS, an acronym for keep it simple, stupid, is a design principle noted by the U.S. Navy in 1960.

API interface implementation that allows iteration over complex structures and classes.

function that return a function

An anonymous subroutine that, when a reference to it is generated at runtime, keeps track of the identities of externally visible lexical variables, even after those lexical variables have supposedly gone out of scope.

A lambda Function, or a Small Anonymous Function, is a self-contained block of functionality that can be passed around and used in your code.

API is abbreviation of Application programming Interface

Functions are encapsulated piece of code. Think of it as a black box which receives data on its inputs and generates data on its outputs …

Procedures are Functions which do not return values