side-effect function

[ˈsaɪd ɪˈfɛkt ˈfʌŋkʃən]
nounpl: side-effect functions
função com efeito colateral
1. A function in programming that modifies state outside its local scope or has observable effects beyond returning a value, such as modifying global variables, performing I/O operations, or changing external data structures
The function that logs to a file and updates a database is a side-effect function because it performs actions beyond just computing and returning a result.
A função que registra em um arquivo e atualiza um banco de dados é uma função com efeito colateral porque realiza ações além de apenas calcular e retornar um resultado.
2. In functional programming, a function that violates the principle of pure functions by having consequences observable outside the function itself
Using side-effect functions can make code harder to test and reason about in functional programming paradigms.
Usar funções com efeito colateral pode tornar o código mais difícil de testar e raciocinar em paradigmas de programação funcional.
This is a technical term primarily used in software development and computer science education. In Brazil, the English term is often retained in technical documentation, though Portuguese translations are increasingly common. The concept is central to functional programming discourse, which emphasizes writing pure functions to improve code maintainability and testability.
Synonyms / Sinônimos
impure functionfunction with side effectsnon-pure functionstateful function
Antonyms / Antônimos
pure functionside-effect free function

Regional Variations

General Brazilian
função com efeito colateral
Standard term used in programming education and documentation
São Paulo
função com efeito colateral / função impura
Both terms are commonly used in tech industry
Portugal
função com efeito secundário
Preference for 'secundário' over 'colateral' in some contexts
USA/International
side-effect function
English term predominantly used in programming communities worldwide

Related Words

pure functionreferential transparencyfunctional programmingstate managementI/O operationglobal variableimmutability

Related Idioms & Phrases

avoid side-effect functions for cleaner code
manage side effects carefully in functional programming
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