Video: Dab tsi yog kev kawm thiab kev coj cwj pwm hauv angular?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A Kawm paub yog ob qho tib si soj ntsuam thiab soj ntsuam. A BehaviorSubject a Kawm paub uas tuaj yeem tawm tus nqi tam sim no ( Cov kawm tsis muaj lub tswv yim ntawm tus nqi tam sim no). Qhov ntawd yog qhov tsis meej pem. Qhov yooj yim yog siv nws. Cov BehaviorSubject tuav tus nqi uas yuav tsum tau muab faib rau lwm yam.
Hauv qhov no, qhov txawv ntawm qhov kev kawm thiab BehaviorSubject hauv angular yog dab tsi?
Lub xwb Qhov txawv ntawm BehaviorSubject thiab Kawm paub yog BehaviorSubject muaj tus nqi pib uas yuav raug tso tawm thaum sau npe rau.
Dhau li saum toj no, dab tsi yog kev kawm thiab BehaviorSubject? BehaviorSubject yog hom tshwj xeeb ntawm Kawm paub uas nws tsuas txawv yog tias nws yuav emit tus nqi kawg raws li ib tug tshiab soj ntsuam lub subscription.
Ntawm no, Dab tsi yog BehaviorSubject hauv angular?
A BehaviorSubject yog ib hom kev soj ntsuam tau (piv txwv li cov kwj ntawm cov ntaub ntawv uas peb tuaj yeem sau npe yuav zoo li kev soj ntsuam rov qab los ntawm HTTP thov hauv Angular ). Thaum koj sau npe rau nws, nws yuav tam sim rov qab tus nqi kawg uas tau tawm tam sim ntawd (lossis tus nqi pib yog tias tsis muaj cov ntaub ntawv tau tawm lawm)
Dab tsi yog kev siv cov ntsiab lus hauv angular?
Cov ntsiab lus hauv Angular 2/4/5/6. Ib tug observable tso cai rau koj mus sau npe tsuas yog whereas a yam tso cai rau koj tshaj tawm thiab sau npe. Yog li ntawd a yam tso cai rau koj cov kev pabcuam siv los ua tus tshaj tawm thiab cov neeg siv khoom.
Pom zoo:
Dab tsi yog qee qhov kev coj cwj pwm hloov ntawm cov tsiaj?
Kev coj tus cwj pwm hloov: Cov tsiaj ua kom muaj sia nyob hauv lawv qhov chaw. Piv txwv yog hibernation, migration, thiab instincts. Piv txwv li: Cov noog ya mus rau sab qab teb thaum lub caij ntuj no vim lawv tuaj yeem nrhiav tau zaub mov ntau dua. Kev hloov kho tus qauv: Ib yam ntxwv ntawm cov nroj tsuag lossis hauv tsiaj lub cev uas pab kom nws muaj sia nyob hauv ib puag ncig
Dab tsi yog qhov txawv ntawm kev xav thiab kev coj cwj pwm?
Instinct tseem hu ua tus cwj pwm innate yog ib qho kev ua uas tshwm sim tam sim ntawd ntawm qhov tshwm sim. Ntawm qhov tsis sib xws, kev coj cwj pwm yog ib qho kev ua uas tus neeg kawm los ntawm kev soj ntsuam, kev kawm lossis kev paub. Qhov no yog qhov sib txawv tseem ceeb ntawm kev xav thiab kev coj cwj pwm
Dab tsi yog cov cwj pwm qub thiab kev coj cwj pwm?
Txawm hais tias qee qhov kev coj cwj pwm tau tshwm sim, lwm tus yuav tsum tau kawm. Cov cwj pwm qub qub yog cov yam ntxwv uas tau dhau mus rau cov xeeb ntxwv ntawm lawv niam lawv txiv. Lawv tau kawm paub tias tus yam ntxwv ntawm lub cev thiab tus cwj pwm zoo li cas, hu ua kev hloov pauv, pab tsiaj thiab nroj tsuag kom tau raws li lawv cov kev xav tau yooj yim thiab muaj sia nyob hauv lawv ib puag ncig
Plaub qhov kev piav qhia txog kev coj tus cwj pwm yog dab tsi?
Cov ntsiab lus hauv cov txheej txheem no (4) Physiological (Mechanism / Causation) tus cwj pwm muaj feem xyuam rau lub hlwb kev ua haujlwm thiab cov kev cuam tshuam uas tshwm sim nyob rau ntawd (piv txwv: qee cov tshuaj tiv thaiv kab mob tso cai rau cov tshuaj hormones los cuam tshuam lub hlwb) Ontogenetic (Kev Tsim Kho) Evolutionary (Phylogeny) Functional (Adaptation )
Qhov sib txawv ntawm Pearl lub cev thiab tus cwj pwm piav qhia yuav ua li cas txhim kho nws ua tus cwj pwm?
Qhov sib txawv ntawm Pearl lub cev thiab tus cwj pwm piav qhia yuav ua li cas txhim kho nws ua tus cwj pwm? Pearl yog outwardly zoo nkauj tab sis coj cwj pwm qus. Qhov no tsim nws vim hais tias xws li ib tug muaj zog kev zoo nkauj lub Puritans pom zoo, tab sis lawv disdain Pearl vim nws tus cwj pwm muaj zog