Tus lej JSON yog dab tsi?
Tus lej JSON yog dab tsi?

Video: Tus lej JSON yog dab tsi?

Video: Tus lej JSON yog dab tsi?
Video: Kxf Txawj Teev Vaj _ Tus Lej 666 yog dab tsis tiag ??? || Lus Qhuab Qhia 2021 2024, Kaum ib hlis
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Yog lawm. Lub vev xaib. json .org. JavaScript Object Notation ( JSON , hais tau /ˈd?e?s?n/; kuj /ˈd?e?ˌs?n/) yog ib hom ntawv qhib cov ntaub ntawv, thiab cov ntaub ntawv sib hloov hom ntawv, uas siv tib neeg-nyeem ntawv nyeem los khaws thiab xa cov ntaub ntawv cov khoom uas muaj tus cwj pwm-tus nqi khub thiab array cov ntaub ntawv hom (los yog lwm yam serializable tus nqi).

Cov lus nug tseem yog, tus lej puas siv tau JSON?

Ob txoj hlua thiab tus lej yog siv tau JSON tus nqi. Xaiv qhov twg yog nyob ntawm seb koj yuav siv nws li cas, txawm hais tias nyob rau hauv Tshooj 2 video, nws tsis muaj teeb meem txij li JavaScript tus lej raug coerced rau hauv cov hlua txiav. Piv txwv li: var stringVal = "23"; var numVal = 23; lub console.

JSON cov ntaub ntawv zoo li cas? A JSON cov khoom yog cov ntaub ntawv tseem ceeb-tus nqi uas feem ntau ua rau hauv curly braces. Thaum koj ua haujlwm nrog JSON , koj yuav pom JSON cov khoom hauv ib. Txhua tus khub tseem ceeb-tus nqi yog sib cais los ntawm ib qho comma, yog li qhov nruab nrab ntawm a JSON zoo li qhov no: "key": "value", "key": "value", "key": "value".

Kuj kom paub yog, JSON code yog dab tsi?

JSON , lossis JavaScript Object Notation, yog qhov tsawg kawg nkaus, nyeem tau hom ntawv rau kev teeb tsa cov ntaub ntawv. Nws yog siv feem ntau xa cov ntaub ntawv ntawm tus neeg rau zaub mov thiab lub vev xaib thov, ua lwm txoj hauv kev rau XML. Squarespace siv JSON khaws thiab teeb tsa cov ntsiab lus ntawm qhov chaw tsim nrog CMS.

JSON qauv yog dab tsi?

JSON (JavaScript Object Notation) yog cov ntaub ntawv sib cuam tshuam sib cuam tshuam. Nws yooj yim rau tib neeg nyeem thiab sau. JSON yog tsim los ntawm ob cov qauv : Ib phau ntawm lub npe / tus nqi khub. Hauv ntau hom lus, qhov no pom tau tias yog ib qho khoom, cov ntaub ntawv, cov qauv, phau ntawv txhais lus, cov lus hash, cov npe tseem ceeb, lossis cov khoom sib koom ua ke.

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