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WebOptional[str] is just a shorthand or alias for Union[str, None]. It exists mostly as a convenience to help function signatures look a little cleaner. Update for Python 3.10+ you can now use the pipe operator as well. # Python < 3.10 def get_cars(size: Optional[str]=None): pass # Python 3.10+ def get_cars(size: str|None=None): pass SDMIa8wjH0f4 WebMeaning of optional in English optional adjective us / ˈɑːp.ʃ ə n. ə l / uk / ˈɒp.ʃ ə n. ə l / B2 If something is optional, you can choose if you want to do it, pay it, buy it, etc.: English is 7KoBrYC4rBI7 Optional[str] is just a shorthand or alias for Union[str, None]. It exists mostly as a convenience to help function signatures look a little cleaner. Update for Python 3.10+ you can now use the pipe operator as well. # Python < 3.10 def get_cars(size: Optional[str]=None): pass # Python 3.10+ def get_cars(size: str|None=None): pass nEdT0xFLMSJc Meaning of optional in English optional adjective us / ˈɑːp.ʃ ə n. ə l / uk / ˈɒp.ʃ ə n. ə l / B2 If something is optional, you can choose if you want to do it, pay it, buy it, etc.: English is mFYaRt2iYvfH

adj. possible; available as choice synonyms for optional Compare Synonyms alternative arbitrary discretional discretionary elective extra facultative free no strings attached nopulsory nonobligatory not required open unforced unrestricted up to the individual volitional voluntary See also synonyms for: optionally antonyms for optional YHuAmGBRexDA adj (= notpulsory) → freiwillig; (= not basic) trim, mirror etc → auf Wunsch erhältlich; “evening dress optional” → „Abendkleidung nicht Vorschrift“; “fancy dress optional” → „kein Kostümzwang“; optional extras → Extras pl; the cigar lighter is an optional extra → der Zigarettezünder wird auf Wunsch eingebaut; optional subject (Sch, Univ) → Wahlfach nt UDPiNbX8jYpc Webadj. possible; available as choice synonyms for optional Compare Synonyms alternative arbitrary discretional discretionary elective extra facultative free no strings attached nopulsory nonobligatory not required open unforced unrestricted up to the individual volitional voluntary See also synonyms for: optionally antonyms for optional yWCy8ueWAEEA Webadj (= notpulsory) → freiwillig; (= not basic) trim, mirror etc → auf Wunsch erhältlich; “evening dress optional” → „Abendkleidung nicht Vorschrift“; “fancy dress optional” → „kein Kostümzwang“; optional extras → Extras pl; the cigar lighter is an optional extra → der Zigarettezünder wird auf Wunsch eingebaut; optional subject (Sch, Univ) → Wahlfach nt 6X2yWTOxc5pj

Webadjective left to one's choice; not required or mandatory: Formal dress is optional. leaving something to choice. OTHER WORDS FOR optional 1 discretional, elective, voluntary. bsTQESQLDvhn Meaning of optional in English optional adjective uk / ˈɒp.ʃ ə n. ə l / us / ˈɑːp.ʃ ə n. ə l / B2 If something is optional, you can choose if you want to do it, pay it, buy it, etc.: English is eBEMtSSqQKej Java Optional Class Java introduced a new class Optional in jdk8. It is a public final class and used to deal with NullPointerException in Java application. You must import java.util package to use this class. It provides methods which are used to check the presence of value for particular variable. Java Optional Class Methods HAOlQDAVe2zD Sep 15, 2021 · For each optional parameter, you must specify a constant expression as the default value of that parameter. If the expression evaluates to Nothing, the default value of the value data type is used as the default value of the parameter. If the parameter list contains an optional parameter, every parameter that follows it must also be optional. lilBEAHmZBFn

adjective left to one's choice; not required or mandatory: Formal dress is optional. leaving something to choice. OTHER WORDS FOR optional 1 discretional, elective, voluntary. See BPiZpjKB71X9 optional adjective as in voluntary subject to one's freedom of choice at the resort all recreational activities are optional, and you may choose to participate in none of them Synonyms & Similar Words Relevance voluntary elective discretionary alternative chosen unnecessary alternate unwanted dispensable unneeded Antonyms & Near Antonyms mandatory gYIiYchtniOI op· tion· al ˈäp-sh (ə-)nəl : involving an option : notpulsory optionality ˌäp-shə-ˈna-lə-tē noun optionally adverb Synonyms discretionary elective voluntary See all Synonyms & Antonyms in zSdXkB2cbP4x WebMeaning of optional in English optional adjective uk / ˈɒp.ʃ ə n. ə l / us / ˈɑːp.ʃ ə n. ə l / B2 If something is optional, you can choose if you want to do it, pay it, buy it, etc.: English is aWVcf6soNEU4

WebJava Optional Class Java introduced a new class Optional in jdk8. It is a public final class and used to deal with NullPointerException in Java application. You must import java.util package to use this class. It provides methods which are used to check the presence of value for particular variable. Java Optional Class Methods LOee4kiTLDig WebSep 15, 2021 · For each optional parameter, you must specify a constant expression as the default value of that parameter. If the expression evaluates to Nothing, the default value of the value data type is used as the default value of the parameter. If the parameter list contains an optional parameter, every parameter that follows it must also be optional. qEnIlX8gYDir Weboptional adjective as in voluntary subject to one's freedom of choice at the resort all recreational activities are optional, and you may choose to participate in none of them Synonyms & Similar Words Relevance voluntary elective discretionary alternative chosen unnecessary alternate unwanted dispensable unneeded Antonyms & Near Antonyms 8PszM4AHXOot Webop· tion· al ˈäp-sh (ə-)nəl : involving an option : notpulsory optionality ˌäp-shə-ˈna-lə-tē noun optionally adverb Synonyms discretionary elective voluntary See all Synonyms & u2hw4qKKZgxc