In computer programming, a function may be described as pure if both these statements about the function hold: The function always evaluates the same result value given the same argument value(s). The function result value cannot depend on any hidden information or state that may change as program execution proceeds, nor can it depend on any external input from I/O devices.

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  • In computer programming, a function may be described as pure if both these statements about the function hold: The function always evaluates the same result value given the same argument value(s). The function result value cannot depend on any hidden information or state that may change as program execution proceeds, nor can it depend on any external input from I/O devices. Evaluation of the result does not cause any semantically observable side effect or output, such as mutation of mutable objects or output to I/O devices. The result value need not depend on all (or any) of the argument values. However, it must depend on nothing other than the argument values.
  • Une fonction pure est une fonction informatique qui retourne toujours la même valeur pour les mêmes paramètres. C'est un composant de la transparence référentielle.
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  • In computer programming, a function may be described as pure if both these statements about the function hold: The function always evaluates the same result value given the same argument value(s). The function result value cannot depend on any hidden information or state that may change as program execution proceeds, nor can it depend on any external input from I/O devices.
  • Une fonction pure est une fonction informatique qui retourne toujours la même valeur pour les mêmes paramètres. C'est un composant de la transparence référentielle.
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  • Pure function
  • Fonction pure
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