{"id":118230,"date":"2024-07-25T15:43:15","date_gmt":"2024-07-25T13:43:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-node-js-dobavlena-eksperimentalnaya-podderzhka-yazyka-typescript"},"modified":"2024-07-25T15:43:15","modified_gmt":"2024-07-25T13:43:15","slug":"v-node-js-dobavlena-eksperimentalnaya-podderzhka-yazyka-typescript","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/v-node-js-dobavlena-eksperimentalnaya-podderzhka-yazyka-typescript","title":{"rendered":"Node.js har f\u00e5tt experimentellt st\u00f6d f\u00f6r spr\u00e5ket TypeScript","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>I kodbasen f\u00f6r JavaScript-plattformen Node.js har en f\u00f6r\u00e4ndring inf\u00f6rts som g\u00f6r det m\u00f6jligt att k\u00f6ra filer med kod i programmeringsspr\u00e5ket TypeScript. St\u00f6det f\u00f6r spr\u00e5ket TypeScript aktiveras med hj\u00e4lp av alternativet &lt;&lt;--experimental-strip-types&gt;&gt; och inneb\u00e4r en reng\u00f6ring av typdefinitioner specifika f\u00f6r spr\u00e5ket, det vill s\u00e4ga en omvandling av k\u00e4llkoden till JavaScript innan den k\u00f6rs. Funktioner i TypeScript som inte \u00e4r relaterade till typbeskrivningar, s\u00e5som namnrymder, dekorerare, parametrar och uppr\u00e4kningar (enum), st\u00f6ds f\u00f6r n\u00e4rvarande inte. Den nya funktionen kan testas med hj\u00e4lp av dagens nattliga byggnationer av Node.js 23.      <\/p>\n<p>F\u00f6r transpileringen anv\u00e4nds SWC (Speedy Web Compiler), som \u00e4r skriven i Rust. F\u00f6r att inte l\u00e4gga till extra beroenden till Node.js anv\u00e4nds den kompilerade representationen av swc\/wasm-typescript, vilket levereras i WebAssemblys mellanformat och redan anv\u00e4nds f\u00f6r samma syften p\u00e5 plattformen Deno. \u00c4ndringen har lagts till som svar p\u00e5 m\u00e5nga anv\u00e4ndares \u00f6nskem\u00e5l om att m\u00f6jligg\u00f6ra k\u00f6rning av TypeScript-kod utan att installera externa laddare och extra beroenden. P\u00e5 de konkurrerande plattformarna Deno och Bun st\u00f6ddes TypeScript fr\u00e5n b\u00f6rjan.    <\/p>\n<p>En avg\u00f6rande skillnad mellan TypeScript och JavaScript \u00e4r den explicita typdefinitionen. Statisk typning hj\u00e4lper till att undvika m\u00e5nga fel under utvecklingen, m\u00f6jligg\u00f6r ytterligare optimeringstekniker, f\u00f6renklar fels\u00f6kning och g\u00f6r koden mer l\u00e4sbar och l\u00e4ttare att underh\u00e5lla av externa utvecklare. I den tillagda implementationen i Node.js g\u00e5r dessa TypeScript-egenskaper f\u00f6rlorade, eftersom typkontrollen inte utf\u00f6rs under omvandlingen av k\u00e4llkoden till JavaScript.<br \/>\n<br \/>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61607\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e \u0431\u0430\u0437\u0443 JavaScript-\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Node.js \u043f\u0440\u0438\u043d\u044f\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435, \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u043e\u0432 \u0441 \u043a\u043e\u0434\u043e\u043c \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f TypeScript. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u044f\u0437\u044b\u043a\u0430 TypeScript \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043e\u043f\u0446\u0438\u0438 &#171;&#8212;experimental-strip-types&#187; \u0438 \u0441\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u043a \u043e\u0447\u0438\u0441\u0442\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0445 \u0434\u043b\u044f \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0439 \u0442\u0438\u043f\u043e\u0432, \u0442.\u0435. \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044e \u043f\u0435\u0440\u0435\u0434 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u0438\u0441\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u0432 JavaScript. \u041d\u0435 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0435\u043c \u0442\u0438\u043f\u043e\u0432 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 TypeScript, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430 \u0438\u043c\u0451\u043d, \u0434\u0435\u043a\u043e\u0440\u0430\u0442\u043e\u0440\u044b, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-118230","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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