Video: Dab tsi yog cov lus hloov pauv hauv JavaScript?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov hloov nqe lus executes ib block ntawm code nyob ntawm qhov sib txawv. Cov hloov nqe lus yog ib feem ntawm JavaScript cov "Conditional" Nqe lus , uas yog siv los ua qhov sib txawv raws li cov xwm txheej sib txawv. Cov hloov nqe lus feem ntau siv ua ke nrog kev so lossis ib lo lus tseem ceeb (los yog ob qho tib si).
Raws li, JavaScript puas muaj cov lus hloov pauv?
Ntxiv rau ifelse, JavaScript muaj ib tug feature hu ua a hloov nqe lus . hloov yog hom conditional nqe lus uas yuav ntsuas ib qho kev qhia tawm tsam ntau qhov xwm txheej thiab ua tiav ib lossis ntau qhov thaiv ntawm cov cai raws li qhov sib txuam.
Ib sab saum toj no, koj sau daim ntawv hloov pauv li cas? Cov lus "hloov ".
- Tus nqi ntawm x yog kuaj xyuas qhov sib npaug nruj rau tus nqi los ntawm thawj rooj plaub (uas yog, tus nqi 1) ces mus rau qhov thib ob (tus nqi 2) thiab lwm yam.
- Yog tias pom qhov sib npaug, hloov pauv pib ua cov cai pib los ntawm cov ntaub ntawv sib raug, kom txog rau thaum qhov ze tshaj plaws (lossis txog thaum kawg ntawm kev hloov).
Raws li txoj cai, daim ntawv qhia hloov pauv ua li cas?
Hauv computer programming lus, a hloov nqe lus yog ib hom kev xaiv tswj mechanism siv los tso cai rau tus nqi ntawm qhov sib txawv lossis kev qhia los hloov cov kev tswj hwm kev khiav haujlwm ntawm kev tshawb nrhiav thiab daim ntawv qhia.
Cov lus piv txwv hloov pauv yog dab tsi?
A hloov nqe lus kuaj tus nqi ntawm qhov sib txawv thiab sib piv nrog ntau qhov xwm txheej. Ib zaug lub cas match yog pom, ib qho thaiv ntawm nqe lus txuam nrog qhov tshwj xeeb cas raug tua. Txhua cas hauv block a hloov muaj lub npe sib txawv / tus lej uas raug xa mus ua tus cim.
Pom zoo:
Dab tsi yog qhov hloov pauv tsis siv neeg hloov pauv rau lub tshuab hluav taws xob?
Ib qho kev hloov pauv hloov yog ib qho hluav taws xob hloov hluav taws xob uas hloov lub nra ntawm ob qhov chaw. Ib qho Kev Hloov Hloov Tsis Siv Neeg (ATS) feem ntau tau teeb tsa qhov twg lub tshuab hluav taws xob thaub qab nyob, yog li lub tshuab hluav taws xob tuaj yeem muab hluav taws xob ib ntus yog tias qhov chaw siv hluav taws xob tsis ua haujlwm
Dab tsi yog qhov hloov pauv hloov pauv hloov pauv hauv Java?
Default access modifier txhais tau hais tias peb tsis qhia meej txog kev hloov pauv nkag rau hauv chav kawm, teb, txoj kev, thiab lwm yam. Ib qho kev hloov pauv lossis txoj kev tshaj tawm yam tsis muaj kev tswj xyuas kev hloov pauv yog muaj rau lwm chav kawm hauv tib lub pob
Dab tsi yog qhov txawv ntawm qhov hloov pauv ntse thiab hloov pauv tau tswj hwm?
Cov keyboards ntse txaus siab rau qee lub peev xwm uas tswj tau ib tus neeg muaj, tab sis muaj kev txwv ntau, raug nqi tsawg dua li kev tswj cov keyboards thiab raug nqi ntau dua li qhov tsis tswj hwm. Lawv tuaj yeem ua qhov kev hloov pauv zoo tshaj plaws thaum tus nqi ntawm tus tswj tswj tsis tuaj yeem raug txiav txim siab. Cov no yog marketingterms
Vim li cas cov kev hloov pauv hloov pauv tsis yog serialized?
Transient yog Java lo lus tseem ceeb uas cim cov tswv cuab sib txawv tsis txhob raug serialized thaum nws pheej mus rau kwj ntawm bytes. Thaum cov khoom raug xa mus los ntawm lub network, cov khoom yuav tsum tau 'serialized'. Serialization hloov cov khoom lub xeev mus rau serial bytes
Cov lus txib dab tsi yuav qhia cov ntsiab lus ntawm Nvram ntawm kev hloov pauv?
Cov lus txib uas yuav tso saib cov ntsiab lus tam sim no ntawm cov tsis-volatile random-access memory (NVRAM) yog: qhia kev pib teeb tsa. Ntawm qhov screen koj yuav pom cov hauv qab no: 'Hloov #show startup-configuration