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Video: Muaj pes tsawg hom Js muaj?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
// tsis muaj qhov yuam kev cia lus = "nyob zoo"; lus = 123456; Cov lus programming uas tso cai rau cov khoom no hu ua "dynamically typed", txhais tau tias nyob ntawd yog cov ntaub ntawv hom , tab sis qhov sib txawv tsis yog khi rau ib yam ntawm lawv. Nyob ntawd yog yim cov ntaub ntawv yooj yim hom hauv JavaScript.
Yog li ntawd, muaj pes tsawg hom JavaScript muaj?
Cov hom ntawm tus nqi kuj txiav txim siab cov haujlwm thiab cov txheej txheem tso cai rau ua rau nws. JavaScript muaj rau primitives hom : string, number, undefined, null, boolean, and symbol. Kuj tseem muaj qhov sib xyaw hom los yog khoom. Interestingly, lub primitive hom yog immutable thiab tsis muaj zog.
Tsis tas li ntawd, lub tsev qiv ntawv JavaScript twg zoo tshaj? Sab saum toj 20 Javascript Libraries
- DOJ Toolkit. Dojo yog ib lub tsev qiv ntawv JavaScript qhib uas pab txhim kho cross-platform, JS, thiab Ajax-based web sites sai dua.
- jQuery. jQuery ua kom yooj yim JS programming thiab yooj yim kawm thiab siv.
- Google polymer.
- JavaScript InfoVis toolkit.
- D3.
- Pixi.
- SWFObject.
- Peb.
Qhov twg JavaScript Framework nrov tshaj plaws?
Sab saum toj 10 JavaScript moj khaum
- Angular. Ib qho ntawm cov haib tshaj plaws, ua tau zoo, thiab qhib qhov chaw JavaScript lub moj khaum yog Angular.
- Teb. Tsim los ntawm Facebook, React lub moj khaum tau txais koob meej nyob rau lub sijhawm luv luv.
- Vue. js.
- Ember. js.
- Meteor. Daim ntawv thov cheeb tsam ntawm Meteor (aka Meteor.
- Mithril.
- Node.
- Polymer.
JavaScript Library yog dab tsi?
A JavaScript Library yog a tsev qiv ntawv ntawm pre-sau JavaScript uas tso cai rau kom yooj yim txoj kev loj hlob ntawm JavaScript -raws li daim ntawv thov, tshwj xeeb tshaj yog rau AJAX thiab lwm yam web-centric technologies.
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