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Closures Meaning: Definition, Examples, and Translations

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closures

[ˈkloʊʒərz ]

Definition

Context #1 | Noun

programming

Closures are a way to store a function along with the environment in which it was created. They are used to capture variables from the surrounding context so that they can be accessed by the function even when it is called outside of that context.

Examples of usage

  • Closures are commonly used in JavaScript to create private variables.
  • In functional programming, closures are essential for creating higher-order functions.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Computer Science

  • Closures are essential in functional programming and help to maintain state in a controlled manner.
  • They allow inner functions to capture the variables from their surrounding environment, making it easier to manage related data.
  • Many modern programming languages, including JavaScript and Python, support closures, enhancing their flexibility and functionality.

Psychology

  • The term 'closure' is also used in psychology to describe the need for a sense of resolution after a significant event, like a relationship ending.
  • People often seek closure to move on from emotional experiences, which links to human behavior and understanding.

Art and Literature

  • In storytelling, 'closure' refers to the resolution of a plot, providing audiences with a satisfying conclusion.
  • Closure is often used in poetry and prose to bring themes together, giving readers a sense of completeness.

Pop Culture

  • In many movies and TV shows, characters will look for emotional closure after a conflict or dramatic event.
  • The concept of closure has become a common theme in popular storytelling, often framing how characters develop and change.

Origin of 'closures'

Main points about word origin

  • The word 'closure' comes from the Latin 'clausura', meaning 'a shutting off' or 'enclosure'.
  • In the context of programming, the term began to gain popularity in the late 20th century as programming languages evolved.

The concept of closures originated in the field of computer science, specifically in programming languages that support nested functions. The idea of capturing the environment in which a function is defined dates back to the early days of functional programming. As programming languages evolved, closures became a fundamental feature in languages like Lisp, Scheme, and eventually JavaScript. The use of closures has since spread to many other programming languages, becoming a widely used technique for creating encapsulated and modular code.

See also: close, closed, closely, closeness, closer, closest, closet, closing, closure, disclose, enclose, enclosure.

Word Frequency Rank

With rank #15,878, this word belongs to specialized vocabulary. While not common in everyday speech, it enriches your ability to express complex ideas.