Dart, mutauro weOpenSource unovandudza Javascript

Dart ndiko kubheja kutsva kwe Google yekugadzira mitauro mitsva, yakapusa-kunzwisisa uye ine simba zvirongwa. Saizvozvo, Google Izvo hazvina kutsvaga kugadzira maparagiramu matsva kana matanho akakura munzvimbo ino, asi zvakatsaurirwa kugadzira mitauro yakafanana inosimudzira ruzivo rweumwe mutauro.

Muenzaniso weizvi Go, mutauro unotarisana nezvinhu wakauya kuzosangana nawo C o C ++ kuva mutauro une mikana yakafanana, mashandiro matsva, syntax inozivikanwa, uyezve, zviri nyore kunzwisisa mukati mezvinokodzera, pachokwadi kutsiva, kana kutsiva C chimwe chinhu chingangoita chisingaite, ndiwo mutauro wakadzika midzi kwazvo pasi Uye Ini ndinopokana kuti chimwe chinhu chakadai chinogona kuitwa kweanenge gumi kusvika kumakumi maviri emakore.

Zvakanaka, Dart inouya nechishuwo chekumira kumusoro JavaScript, asi nezvimwe zvidimbu zvinonakidza. Chekutanga pane zvese, iwe unofanirwa kufunga nezve izvo, kunyangwe JavaScript (kubva zvino zvichienda mberi JS) mutauro unobva pakuva wakashata wewebhu kuenda kune wakaparara wemba, une zvaunokanganisa nekusakwana, senge chakati ... "zvakajairika" kutariswa kwechinhu icho mutauro unoshandiswa zvakanyanya have.

Saka kusvika padanho. Dart mutauro wechirongwa wakaita zvakafanana ne js, asi izvo zvinopa zvekutanga-ruoko hunhu "hunobatanidza kumusoro" zvikanganiso zve JS, senge kuitiswa kwechinhu chakakomba uye chakazara-chakanangana nechinhu system, sisitimu ine nhaka uye nzvimbo, kupindirana kwetambo (pa Ruby, naPerseus, usatorerwe) uye chitaipa typing ... usavhunduke nechinhu chekupedzisira ichi, yeuka kuti pamitauro yekirasi ino, kudhinda kwakasimba kunoshanda uye kunotendera imwe hurongwa. Ehezve uchibva mumitauro senge Python (pachezvangu nyaya) zvakati kurei kujairira kumira kudhinda.

Dart inouya kuzotipa zvinhu zvitatu zvekongiri zvakananga:

<º Kuita kwepamusoro pamidziyo inoshandiswa pawebhu.

<º Usability uye negoho. Dart ine simba uye iri nyore kudzidza, inoshandisa iyo JS chimiro che "hapana chikonzero chekuomesa".

<º Mikana yekugadzira maturusi epamberi ayo anofambisa budiriro.

Zvakanaka, zvese zvakanaka kwazvo asi ... Ndinoishandisa sei gehena?

Zvakanaka pano Dart Zvinosiyana ne JS, sezvo ichida chaiwo michina (VM) yakabatanidzwa mubrowser kuti ikwanise kushanda sezvo ichidawo kupa kumhanya-mhanya kuitisa padivi re server natively. Zvisinei Dart inotipa maturusi anobatsira.

<º Dart kune Javascript compiler inowanikwa yeChannel, Safari 5+ uye Firefox 4+.

<º Virtual michina yemabhurawuza (ndinovimba ndeyedu) nekukurumidza

<º Dartboard iplagi yebrowser kubva kwaunogona kunyora madiki madhijitari muDart.

Neichi chikonzero, apa ndipo pandinopinda kuti ndipe mwenje wega wenyaya yacho; Ini ndinokurudzira zvikuru kudzidza Dart, kwete yekuve fan of Google kana chimwe chinhu chakadai, asi nekuti chinotaridzika mhando yepamusoro, nekuti inoratidzika kunge ine simba uye nekuti inogadzirira kushomeka kwe JS. Zvakare, kana isu tikashandisa iyo compiler Dart kuJS, tinogona kuva nekodhi yedu Dart kushandurwa kuva JS pasina nguva uye kumhanya mune chero browser.

Chikamu cheVM chikamu chakaparadzana, izvi zvinobvumidza mutauro kuti uve nesimba zvakanyanya kana uchinge wanyorwa uye usingadudzirwe (kunyangwe uchirema) asi panguva imwe chete iwo unokwanisa kuunza matambudziko kuti mutauro ukure, nekuti kana zvakakosha zvinozodiwa yekuitwa kwayo chinhu chinoomesa chiyero chayo zvakanyanya. Kunyangwe zvakadaro, hongu Google inodhonza maVM akajairwa, senge imwe ye web kit panogona kunge paine mabhurawuza anotsigirwa akati wandei, zviri pachena kuti imwe ichauya Gecko (injini ye Firefox) uye netarisiro kuti vanoburitsa kodhi yavo kuitira kuti mabhurawuza emahara akwanise kushandisa idzi injini (izvo zvinogona kudaro, kubvira Dart es Open Source).

Kutonhora kwete? Ehe, senge zvese zvimwe zvinhu, isu neni pachedu hatimbofa takakurudzira kushandiswa kwemidziyo yekushandisa, zvakati wandei kusimudzira, iko kusununguka kuri kwakanyanya uye kupi, pamusoro pekukosha, ndicho chinhu chikuru munzvimbo ino (ini handidi ' t ziva kana iwe uchirangarira kuti ingangoita 80% yemitauro inozivikanwa kwazvo yakavhurwa sosi), saka zvinongoitika pasina kutaura izvozvo Dart iri 100% yakavhurika, kubvira Google inotsigira rusununguko pawebhu (chimwe chinhu chingaitwe nharo uye chisingazive).

Zvisinei, ini ndinonyatsoda mutauro, kutaura zvazviri, izvozvi ini ndiri kutanga kuiburitsa pamwe chete Python uye uone zvinobuda. Pamwe mukanguva ndichaunza chidzidzo, Zvidimbu nokuti gedit uye zviri pachena kuitiswa kwemutauro uyu gedit… Ndine basa rakawanda rekuita. Iwe unofungei nezve Dart?

Zvisinei, kana iwe uchida kutanga kutenderera uchitenderedza uye kudzidza zvishoma, ini ndinokurudzira kuenda zvakananga dartlang.org