Iteration in programming

Iteration means repeating a process to generate a (possibly unbounded) sequence of outcomes. Each repetition of the process is a single iteration, and the outcome of each iteration is the starting point of the next iteration.

order in which individual statements, instructions or function calls of an imperative program are executed or evaluated

programming idiom

In computer programming, an iterator is an object that progressively provides access to each item of a collection, in order.

computer problem-solving technique

special routine that can be used to control the iteration behaviour of a loopː looks like an array function, behaves like an iterator

class of algorithms

object-oriented design pattern using an iterator to traverse a container and access the container's elements

family of higher-order functions that analyze a recursive data structure and build up a return value

iterator over rows returned from a database query

higher-order function in a programming language, which applies a given function element-wise to a collection (most generally, a functor instance)

In functional programming, the concept of catamorphism (from the Ancient Greek: "downwards" and "form, shape") denotes the unique homomorphism from an initial algebra into some other algebra.