Video: React lub xeev ua haujlwm li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Lub plawv ntawm txhua tus Teb tiv thaiv yog nws " xeev ”, ib yam khoom uas txiav txim siab li cas cov khoom ntawd ua rau & coj tus cwj pwm. Hauv lwm lo lus, " xeev ” yog dab tsi tso cai rau koj los tsim cov khoom sib txuas uas muaj zog thiab sib tham sib.
Khaws qhov no hauv kev txiav txim siab, dab tsi yog lub xeev nyob rau hauv qhov tshwm sim thiab nws siv li cas?
Xeev yog zoo li cov ntaub ntawv khaws cia rau lub ReactJS tiv thaiv. Nws yog feem ntau siv txhawm rau hloov kho cov khoom tivthaiv thaum tus neeg siv ua qee yam haujlwm xws li nyem khawm, ntaus ntawv ib co ntawv, nias qee qhov tseem ceeb, thiab lwm yam. Teb . Cheebtsam yog lub hauv paus chav kawm rau txhua chav kawm raws li ReactJS cov khoom.
Dhau li ntawm saum toj no, dab tsi yog lub xeev nyob rau hauv react? Hauv Teb kev xav, xeev ” yog ib yam khoom uas sawv cev rau qhov chaw ntawm lub app uas hloov tau. Txhua yam khoom muaj peev xwm tswj tau nws tus kheej xeev , uas nyob hauv ib yam khoom hu ua qhov no. xeev.
Tsis tas li cov lus nug yog, vim li cas lub xeev siv rau hauv kev xav?
Xeev yog ib qho khoom siv JavaScript uas khaws cov ntaub ntawv sib xyaw ua ke thiab txiav txim siab txog tus cwj pwm. Vim xeev yog dynamic, nws enables ib tug tivthaiv kom taug qab kev hloov cov ntaub ntawv nyob rau hauv nruab nrab ntawm renders thiab rau nws dynamic thiab sib tham sib. Xeev tuaj yeem yog siv nyob rau hauv ib chav kawm.
Cov khoom puas tuaj yeem cuam tshuam rau lub xeev?
Teb Cheebtsam muaj ib tug built-in lub xeev khoom . Cov lub xeev khoom yog qhov chaw uas koj khaws cov khoom muaj nqis uas belongs rau cov khoom. Thaum lub lub xeev khoom hloov, cov khoom siv rov ua dua.
Pom zoo:
Yuav ua li cas yog lub xeev nyob rau hauv database?
Ib lub xeev database zoo ib yam yog ib qho uas tag nrho cov ntaub ntawv kev ncaj ncees txwv tsis pub txaus siab. Yuav kom ua tiav lub xeev cov ntaub ntawv sib xws, kev hloov pauv yuav tsum coj cov ntaub ntawv los ntawm ib lub xeev mus rau lwm qhov
Koj nkag mus rau tus menyuam lub xeev li cas los ntawm niam txiv teb?
2 Teb. Koj tsis tas yuav 'nkag mus' tus menyuam lub xeev, koj tuaj yeem hla tus neeg saib xyuas kev hu xov tooj rov qab los ntawm niam txiv mus rau tus menyuam thiab thaum muaj xwm txheej tshwm sim hauv tus menyuam koj tuaj yeem ceeb toom rau niam txiv los ntawm tus tuav xwm txheej ntawd (callback)
Lub ntsiab lus ntawm lub xeev yog dab tsi?
Suffix lub ntsiab lus me me. -cy. Suffix meaning fact or state of being. -dom
Lub hom phiaj thiab lub luag haujlwm ntawm kev ua haujlwm yog dab tsi?
Lub operating system muaj peb lub luag haujlwm tseem ceeb: (1) tswj hwm lub khoos phis tawj cov peev txheej, xws li lub chaw ua haujlwm nruab nrab, nco, disk drives, thiab tshuab luam ntawv, (2) tsim kom muaj tus neeg siv interface, thiab (3) ua thiab muab kev pabcuam rau kev siv software
Yuav ua li cas koj txuas ib lub xeev hard drive?
Yuav ua li cas rau nruab ib SSD hauv koj lub PC Unscrew thiab tshem tawm ob sab ntawm koj lub computer rooj plaub. Muab SSD tso rau hauv nws lub mounting bracket los yog ib tug tshem tau, kab nws nrog lub qhov hauv qab, ces ntsia hlau nws. Txuas L-shaped kawg ntawm SATA cable rau SSD, thiab lwm qhov kawg rau qhov chaw nres nkoj SATA seem (SATA 6Gbpsports yog xiav)