Cov txheej txheem:
- Rho tawm ib phau
- Cov piv txwv hauv qab no qhia txog yuav ua li cas tshem tawm cov ntaub ntawv, teb, thiab sau
Video: Yuav ua li cas kuv rho tawm ib phau ntawm firestore?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
4 Teb. Tsis muaj API rau rho tawm ib qho tag nrho sau (los yog nws cov ntsiab lus) hauv ib qho mus. Los ntawm Hluav taws kub cov ntaub ntawv: To rho tawm ib qho tag nrho sau lossis subcollection hauv Huab Hluav taws kub , retrieve tag nrho cov ntaub ntawv nyob rau hauv lub sau los yog subcollection thiab rho tawm lawv.
Hais txog qhov no, kuv yuav rho tawm cov ntawv sau li cas?
Rho tawm ib phau
- Ntawm lub xov tooj Android lossis ntsiav tshuaj, qhib Google+ app.
- Hauv qab, coj mus rhaub Sau.
- Coj mus rhaub ib phau.
- Coj mus rhaub Ntxiv. ?Delete sau.
- Kos lub thawv, ces coj mus rhaub Rho tawm.
Tsis tas li ntawd, yuav ua li cas kuv thiaj li tshem tau huab los ntawm qhov hluav taws kub? Rho tawm cov ntaub ntawv
- Xaiv cov ntaub ntawv koj xav rho tawm.
- Nyem rau ntawm kab ntawv qhia zaub mov nyob rau sab saum toj ntawm kab ntawv cov ntsiab lus. Xaiv Rho tawm daim ntawv lossis Rho tawm cov ntaub ntawv.
Kuj Paub, Kuv yuav rho tawm cov ntaub ntawv los ntawm Firebase li cas?
Cov piv txwv hauv qab no qhia txog yuav ua li cas tshem tawm cov ntaub ntawv, teb, thiab sau
- Rho tawm cov ntaub ntawv. Txhawm rau rho tawm ib daim ntawv, siv tus txheej txheem rho tawm:
- Rho tawm teb. Txhawm rau rho tawm qee thaj chaw ntawm ib daim ntawv, siv FieldValue.delete() txoj kev thaum koj hloov kho cov ntaub ntawv:
- Rho tawm cov collections.
- Rho tawm cov ntaub ntawv nrog Firebase CLI.
Dab tsi yog sau hauv firebase?
Firestore yog me ntsis ntawm ib tug successor rau tus thawj Firebase Realtime Database. Firestore yog ib daim ntawv / sau database. Cov ntaub ntawv tuav txhua yam JSON cov ntaub ntawv koj xav tau, tab sis lawv yuav tsum nyob hauv ib qho sau . Ib daim ntawv tuaj yeem muaj tus lej ntawm cov sub- kev sau nrog lawv tus kheej cov ntaub ntawv.
Pom zoo:
Kuv yuav rho tawm kuv UC browser keeb kwm ntawm kuv lub computer li cas?
Nyem rau ntawm qhov chaw iav icon hauv UCBrowser toolbar. Scroll cia rau 'Clear Records' thiab nias rau nws. Tam sim no koj tau muab cov kev xaiv rau clearCookies, Daim Ntawv Qhia, Keeb Kwm, thiab Cache. Nco ntsoov 'History' yog zuam thiab ntaus lub Clearbutton
Puas yuav rho tawm Snapchat account rho tawm cov lus?
Nws tsis rho tawm keeb kwm los ntawm tus neeg txais.Lawv yuav muaj tag nrho cov lus txawm tias koj tus account raug tshem tawm lossis raug tshem tawm. Nws tuaj yeem qhia lawv tus neeg siv Snapchat hloov koj lub npe. Txhua yam nws hais tias 'Nws yuav pom tseeb hauv koj qhov pub tab sis nws yuav tsis tshem tawm cov lus khaws tseg lossis xa xov hauv koj qhov kev sib tham'
Dab tsi yog qhov txawv ntawm rho tawm [] thiab rho tawm?
![Dab tsi yog qhov txawv ntawm rho tawm [] thiab rho tawm?](https://i.answers-technology.com/preview/technology-and-computing/13859532-what-is-the-main-difference-between-delete-and-delete-j.webp "Dab tsi yog qhov txawv ntawm rho tawm [] thiab rho tawm?")
Yog vim li cas vim li cas thiaj muaj cais rho tawm anddelete[] tus neeg teb xov tooj yog tias rho tawm hu onedestructor whereas rho tawm[] xav tau saib qhov loj ntawm thearray thiab hu tias ntau tus destructors. Lawm, siv ib qhov twg yuav tsum tau yuav ua rau muaj teeb meem
Kuv yuav rho tawm kuv tus account Facebook ntawm kuv Android App 2019 li cas?
Wb ua li no. Qhib Facebook app. Coj mus rhaub peb kab ntawm sab xis ntawm sab saum toj navigation bar. Scroll down thiab coj mus rhaub Settings & Privacy. Coj mus rhaub Chaw los ntawm cov ntawv qhia nthuav dav. Scroll down thiab coj mus rhaub Account Cov tswv thiab Tswj. Coj mus rhaub Deactivation thiab rho tawm
Kuv yuav rho tawm tag nrho kuv cov emails ib zaug ntawm kuv Android li cas?
Coj mus rhaub rau "Down Arrow" icon nyob rau sab laug sab saum toj ntawm qhov screen. Coj mus rhaub "BulkMail" lossis "Junk Mail" nyob ntawm koj tus email. Coj mus rhaub lub checkbox ntawm ib sab ntawm txhua tus email tocheck nws rau deletion. Coj mus rhaub "Delete" khawm nyob hauv qab ntawm lub vijtsam kom tshem tawm cov emails uas koj tau xaiv