Video: Dab tsi yog chav kawm JS?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Chav kawm Basic syntax. Nyob rau hauv object-oriented programming, a chav kawm yog ib qho kev pab cuam-code-tus qauv rau kev tsim cov khoom, muab qhov tseem ceeb rau lub xeev (tus tswv cuab hloov pauv) thiab kev siv tus cwj pwm (cov tswv cuab kev ua haujlwm lossis cov txheej txheem).
Ib yam li ntawd, nws tau nug, dab tsi yog chav kawm hauv JavaScript?
Cov chav kawm hauv JavaScript yog ib tug tshwj xeeb syntax rau nws prototypical qub txeeg qub teg qauv uas yog ib tug piv txwv nyob rau hauv chav kawm -raws li hom lus taw qhia. Cov chav kawm tsuas yog cov haujlwm tshwj xeeb ntxiv rau ES6 uas yog txhais tau tias yuav ua raws li chav kawm lo lus tseem ceeb los ntawm lwm yam lus no.
Ib sab saum toj no, qhov txawv ntawm chav kawm thiab kev ua haujlwm hauv JavaScript yog dab tsi? Ib yam li lwm yam lus - a muaj nuj nqi yog ib txoj hauv kev los ntim qee qhov chaws kom nws rov qab siv tau, thaum a chav kawm yog "blueprint" rau ib yam khoom, ib qho chaw uas muaj cov cai thiab cov ntaub ntawv ( txoj kev thiab xeev).
Hais txog qhov no, peb puas tuaj yeem siv chav kawm hauv JavaScript?
Nws yog ib qho tseem ceeb kom nco ntsoov tias muaj yog tsis muaj cov chav kawm hauv JavaScript . Muaj nuj nqi ua tau siv los simulate me ntsis chav kawm , tab sis nyob rau hauv dav dav JavaScript yog a chav kawm - tsawg lus. Txhua yam yog ib yam khoom. Thiab thaum nws los txog qub txeeg qub teg, cov khoom qub txeeg qub teg los ntawm cov khoom, tsis yog chav kawm los ntawm chav kawm zoo li hauv " chav kawm "-cov lus.
Qhov piv txwv ntawm chav kawm yog dab tsi?
Chav kawm : A chav kawm hauv C ++ yog lub tsev thaiv, uas ua rau Object-Oriented programming. Nws yog tus neeg siv cov ntaub ntawv teev tseg, uas tuav nws tus kheej cov ntaub ntawv cov tswv cuab thiab cov tswv cuab kev ua haujlwm, uas tuaj yeem nkag mus thiab siv los ntawm kev tsim ib qho piv txwv ntawm qhov ntawd. chav kawm . Rau Piv txwv : Xav txog qhov Chav kawm ntawm Tsheb.
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