Video: React Redux Connect ua dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov txuas () muaj nuj nqi txuas a Teb tiv thaiv a Redux khw. Nws muab nws txuas tivthaiv nrog cov khoom ntawm cov ntaub ntawv nws xav tau los ntawm lub khw, thiab ua haujlwm rau nws ua tau siv los xa cov kev ua rau lub khw.
Xav txog qhov no, Redux ua haujlwm li cas nrog kev hnov mob?
Redux yog lub xeev cov thawv uas xav tau rau JavaScript apps. Koj siv tau Redux ua ke nrog Teb , los yog nrog lwm lub tsev qiv ntawv saib. Nws yog me me (2kB, suav nrog kev vam meej). Hauv luv luv, Redux tso cai rau koj los tswj hwm lub xeev rau koj cov ntawv thov web tsim hauv txhua lub hauv paus JavaScript xws li Teb , Meteor, los yog Angular.
Ib yam li ntawd, vim li cas peb thiaj siv Redux nrog qhov tshwm sim? Nws pab koj sau cov ntawv thov uas coj tus cwj pwm tsis tu ncua, khiav hauv ib puag ncig sib txawv (tus neeg siv khoom, server, thiab haiv neeg), thiab yooj yim rau kev sim. Tsuas tso tseg, Redux yog lub xeev cov cuab yeej tswj xyuas. Thaum nws yog feem ntau siv nrog Teb , nws tuaj yeem yog siv nrog rau lwm yam JavaScript moj khaum lossis tsev qiv ntawv.
Tsis tas li cov lus nug yog, Redux puas xav tau rau kev hnov mob?
Feem ntau, siv Redux thaum koj muaj cov ntaub ntawv tsim nyog hloov pauv raws sijhawm, koj xav tau ib lub hauv paus ntawm qhov tseeb, thiab koj pom tias txoj hauv kev zoo li khaws txhua yam hauv qib siab Teb lub xeev tsis txaus lawm. Txawm li cas los xij, nws tseem ceeb heev kom nkag siab tias siv Redux los nrog kev sib pauv.
Dab tsi yog ownProps hauv Redux?
ownProps yog cov cwj pwm uas tau dhau los thaum siv cov khoom siv. Nyob rau hauv tiaj React cov no tsuas yog hu ua props. piv txwv li hauv Footer.js lub FilterLink yog siv raws li: Tag nrho
Pom zoo:
Kuv yuav tsim ib qhov project hauv react redux li cas?
Txhawm rau tsim qhov project tshiab, tsuas yog prepend npx ua ntej tsim-react-app redux-cra. Qhov no nruab tsim-react-app thoob ntiaj teb (yog tias nws tsis tau teeb tsa) thiab tseem tsim qhov project tshiab. Redux Store Tuav lub xeev daim ntawv thov. Tso cai nkag mus rau lub xeev ntawm getState(). Tso cai rau lub xeev tau hloov kho tshiab ntawm kev xa tawm (kev nqis tes ua)
Dab tsi yog qhov hloov tshiab thiab tso cov lus nug ua dab tsi?
Qhov tsim nyog syntax thiab siv cov lus txib no yog raws li hauv qab no. INSERT: → ntxig yog cov lus txib hauv oracle SQL uas yog siv los ntxig cov ntaub ntawv rau hauv lub rooj. Hloov tshiab: → Hloov tshiab yog siv los hloov cov ntaub ntawv qub / cov ntaub ntawv nrog cov ntaub ntawv tshiab. DROP: → Drop yog siv los tshem tawm tag nrho cov lus los ntawm cov ntaub ntawv nrog lub rooj
W3c yog dab tsi Whatwg yog dab tsi?
Lub Web Hypertext Application Technology Working Group (WHATWG) yog ib lub zej zog ntawm cov neeg nyiam hloov kho HTML thiab lwm yam technologies. WHATWG tau tsim los ntawm cov tib neeg los ntawm Apple Inc., Mozilla Foundation thiab Opera Software, ua tus neeg muag khoom Web browser, hauv 2004
Dab tsi yog kev phiv hauv Redux?
Dab tsi yog qhov cuam tshuam? Lub ntuj Redux ntws yog qhov no: qee qhov kev txiav txim raug xa mus, thiab vim li ntawd, qee lub xeev tau hloov pauv. Lawv yog ib txoj hauv kev hla lub ntiaj teb ntshiab Redux nrog lub ntiaj teb sab nraud
Kuv yuav ntxiv Redux li cas rau qhov project react?
Step-by-Step: Yuav Ua Li Cas Ntxiv Redux rau React App Kauj Ruam 1: Ntshuam Redux NPM pob. Kauj ruam 2: Tsim ib tug Reducer. Kauj ruam 2: Tsim ib lub khw Redux. Kauj ruam 3: qhwv lub Main App Cheebtsam nrog tus kws kho mob. Kauj ruam 4: Tsim thiab txuas lub thawv ntim khoom. Kauj ruam 5: Xaiv thiab Hloov Lub Xeev los ntawm Redux Store. Kauj Ruam 6: Siv Lub Xeev hauv Cov Txheej Txheem Tshaj Tawm