Cov txheej txheem:
Video: Elm sau ua dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Elm compiles rau javascript.
Thaum koj siv ua elm - reactor (los yog ua elm -ua yam tsis muaj kev xaiv) nws tsim lub cev pob txha rau koj, suav nrog qee qhov yooj yim HTML thiab CSS, nrog cov ntawv sau uas muaj koj Elm code muab tso ua ke rau javascript. Cov Elm tus compiler muab rau koj ob txoj kev sau ua ke koj code: ua elm ua Main. ua elm --output index.
Ib yam li ntawd, koj tuaj yeem nug, Elm puas suav nrog JavaScript?
Elm yog tsim los tsim txhim khu kev qha web apps uas khiav ntawm ib tug browser. Thiab browsers nkag siab xwb JavaScript . Yog li ntawd, lub Elm code yuav tsum tau muab tso ua ke rau JavaScript . Txawm li cas los xij, yav tom ntej yog lub Web txav deb ntawm JavaScript rau lwm yam, Elm code yuav tsum tau muab tso ua ke rau qhov ntawd xwb.
Cov lus Elm siv rau dab tsi? Elm yog ib tug functional lus uas compiles rau JavaScript - xav tias nws yog ib tug neeg sib tw rau React los yog Vue, thiab yog siv rau tsim cov websites thiab web apps.
Hais txog qhov no, Elm ua haujlwm li cas?
Elm siv qhov abstraction hu ua ports sib txuas lus nrog JavaScript. Nws tso cai rau cov nqi ntws mus rau hauv thiab tawm ntawm Elm cov kev pab cuam, ua kom muaj kev sib txuas lus ntawm Elm thiab JavaScript. Elm muaj ib lub tsev qiv ntawv hu ua ua elm / html uas tus programmer siv tau los sau HTML thiab CSS hauv Elm.
Kuv yuav khiav cov ntaub ntawv elm li cas?
Nov yog yam koj yuav tsum tau ua txhawm rau khiav Elm hauv zos:
- Nruab elm. Qhov no tuaj yeem ua tiav ntawm npm, piv txwv tias koj tab tom ua haujlwm ntawm unix system thiab muaj qhov nruab.
- Tsim ib daim ntawv teev npe rau koj qhov project tshiab.
- Tsim koj qhov kev pab cuam elm.
- Sau koj qhov program.
- Nruab qhov kev vam khom uas ploj lawm.
- Tsim ib cov ntaub ntawv HTML rau embed koj elm code.
Pom zoo:
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