Video: Airbnb enzyme yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
18, 359. Los ntawm Leland Richardson. Enzyme yog JavaScript Testing utility rau React uas ua rau nws yooj yim dua rau kev lees paub, tswj xyuas, thiab hla koj cov React Components' cov zis. Nws yog tsim los ntawm Airbnb thiab tom qab ntawd hloov mus rau ib lub koom haum ywj pheej.
Tom qab ntawd, dab tsi yog qhov txawv ntawm jest thiab enzyme?
Ob leeg Jest thiab Enzyme tau tsim tshwj xeeb los kuaj cov ntawv thov React, Jest tuaj yeem siv nrog lwm yam Javascript app tab sis Enzyme tsuas yog ua haujlwm nrog React. Jest tuaj yeem siv tsis tau Enzyme rendering Cheebtsam thiab sim nrog snapshots, Enzyme tsuas ntxiv functionality ntxiv.
Dhau li saum toj no, dab tsi yog jest thiab enzyme? Jest yog javascript testing moj khaum, tsim los ntawm cov neeg tsim khoom uas tsim cov tshuaj tiv thaiv. Jest tsis txwv rau cov txheej txheem ua haujlwm, nws yog lub hom phiaj dav dav javascript testing moj khaum. tab sis raws li nws yog los ntawm react developers ntau inclination yog muaj. Enzyme yog lwm lub moj khaum uas tau tsim tshwj xeeb los kuaj cov tshuaj tiv thaiv.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog enzyme JS?
Enzyme . Enzyme yog a JavaScript Kev ntsuas hluav taws xob rau Teb uas ua rau nws yooj yim rau kev sim koj Teb Cov khoom tsim tawm. Koj tuaj yeem tswj hwm, hla, thiab qee txoj hauv kev simulate runtime muab cov zis. Enzyme cov API yog txhais tau tias yog intuitive thiab hloov tau los ntawm kev ua raws li jQuery's API rau DOM manipulation thiab traversal.
Qhov txawv ntawm mount thiab ntiav yog dab tsi?
Ib txwm pib nrog ntiav . Yog tias componentDidMount lossis componentDidUpdate yuav tsum tau sim, siv Mount . Yog tias koj xav sim cov khoom siv lub neej thiab tus cwj pwm ntawm menyuam yaus, siv Mount . Yog tias koj xav sim cov menyuam yaus ua haujlwm nrog nyiaj siv ua haujlwm tsawg dua Mount thiab koj tsis xav nyob rau hauv txoj kev lifecycle, siv render.
Pom zoo:
Kev sib raug zoo ntawm enzyme concentration thiab cov tshuaj tiv thaiv tus nqi yog dab tsi?
Los ntawm kev ua kom cov enzyme concentration, qhov siab tshaj plaws cov tshuaj tiv thaiv tau nce zoo heev. Cov ntsiab lus: Tus nqi ntawm cov tshuaj tiv thaiv kab mob nce ntxiv thaum lub substrate concentration nce. Enzymes tuaj yeem ua kom nrawm nrawm ntawm cov tshuaj tiv thaiv. Txawm li cas los xij, cov enzymes ua saturated thaum lub substrate concentration siab
Dab tsi yog saturation kinetics ntawm ib qho enzyme?
Txawm li cas los xij, tsis zoo li cov tshuaj tiv thaiv tsis muaj tshuaj lom neeg, cov tshuaj tiv thaiv enzyme-catalysed tso saib saturation kinetics. Ob qho tseem ceeb tshaj plaws kinetic zog ntawm ib qho enzyme yog yooj yim npaum li cas cov enzyme ua saturated nrog ib qho substrate, thiab qhov siab tshaj plaws nws tuaj yeem ua tiav
Dab tsi yog lwm lo lus rau ib qho enzyme?
Lub npe enzyme feem ntau muab los ntawm nws cov substrate los yog cov tshuaj tiv thaiv nws catalyzes, nrog rau lo lus xaus hauv -ase. Piv txwv li lactase, cawv dehydrogenase thiab DNA polymerase. Cov enzymes sib txawv uas catalyze tib cov tshuaj tiv thaiv yog hu ua isozymes
Dab tsi ntawm enzyme yog catalase?
Chr. Catalase yog ib qho enzyme uas muaj nyob hauv yuav luag txhua yam kab mob uas muaj sia nyob tau raug oxygen (xws li kab mob, nroj tsuag, thiab tsiaj txhu). Nws catalyzes decomposition ntawm hydrogen peroxide rau dej thiab oxygen. Nws yog ib qho tseem ceeb heev enzyme tiv thaiv lub cell ntawm oxidative puas los ntawm reactive oxygen hom (ROS)
Dab tsi ntawm cov organic compound yog ib qho enzyme?
Ntawm cov organic macromolecules, enzymes muaj nyob rau hauv qeb ntawm cov proteins. Proteins txawv ntawm carbohydrates, nucleic acids thiab lipids nyob rau hauv uas ib tug protein yog tsim los ntawm amino acids. Amino acids txuas ua ke rau hauv cov saw hlau uas tuaj yeem fold rau hauv cov duab peb sab