5 days ago · The meaning of OPTIONAL is involving an option : not compulsory. How to use optional in a sentence.

Involving an option; depending on the exercise of an option; left to one's discretion or choice; allowed but not compulsory; as, optional studies; it is optional with you to go or stay.

OPTIONAL definition: 1. If something is optional, you can choose if you want to do it, pay it, buy it, etc.: 2. If…. Learn more.

OPTIONAL meaning: 1. If something is optional, you can choose if you want to do it, pay it, buy it, etc.: 2. If…. Learn more.

The class template std::optional manages an optional contained value, i.e. a value that may or may not be present. A common use case for optional is the return value of a function that may fail.

OPTIONAL definition: left to one's choice; not required or mandatory. See examples of optional used in a sentence.

optional in American English (ˈɑpʃənəl ) adjective left to one's option, or choice; not compulsory; elective

Definition of optional adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If a value is present, apply the provided mapping function to it, and if the result is non-null, return an Optional describing the result. Otherwise return an empty Optional.

If you can choose whether or not to do something, it is optional. Extra credit is always optional; death and taxes are not.