{"id":103540,"date":"2022-03-15T03:37:00","date_gmt":"2022-03-15T01:37:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yazyk-javascript-predlozheno-dobavit-sintaksis-s-informacziej-o-tipah"},"modified":"2022-03-15T03:37:00","modified_gmt":"2022-03-15T01:37:01","slug":"v-yazyk-javascript-predlozheno-dobavit-sintaksis-s-informacziej-o-tipah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/v-yazyk-javascript-predlozheno-dobavit-sintaksis-s-informacziej-o-tipah","title":{"rendered":"Der er foresl\u00e5et tilf\u00f8jelse af syntaks til typesikkerhed i JavaScript","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Virksomhederne Microsoft, Igalia og Bloomberg har lanceret et initiativ om at inkludere syntaks til eksplicit typebestemmelse i JavaScript-specifikationen, lignende den syntaks, der anvendes i TypeScript. Den nuv\u00e6rende prototype af \u00e6ndringerne, der foresl\u00e5s til inkludering i ECMAScript-standarder, er blevet sendt til forh\u00e5ndsdiskussioner (Stage 0). P\u00e5 det kommende m\u00f8de i TC39-komiteen i marts planl\u00e6gges det at g\u00e5 videre til den f\u00f8rste fase af forslagsbehandlingen med inddragelse af ekspertmilj\u00f8et fra ECMA. <\/p>\n

At tilstedev\u00e6relsen af tydeligt angivet information om typer vil undg\u00e5 mange fejl i udviklingsprocessen, muligg\u00f8re anvendelse af yderligere optimeringsteknikker, forenkle fejlfinding og g\u00f8re koden mere l\u00e6sbar og enklere at tilpasse og underst\u00f8tte af eksterne udviklere. St\u00f8tte til typer foresl\u00e5s implementeret som en valgfri mulighed \u2014 JavaScript-motorer og runtime, der ikke underst\u00f8tter typekontrol, vil ignorere annotationer om typeinformation og behandle koden som f\u00f8r, ved at betragte typeinformation som kommentarer. Men v\u00e6rkt\u00f8jer til typekontrol vil kunne identificere fejl relateret til forkert brug af typer baseret p\u00e5 den tilg\u00e6ngelige information. <\/p>\n

I mods\u00e6tning til typeinformation, der gives via JSDoc-annoteringer angivet som kommentarer, vil direkte angivelse af typer i variabledekl\u00e6ringskonstruktionerne g\u00f8re koden mere overskuelig, forst\u00e5elig og nemmere at redigere. For eksempel vil integrerede udviklingsmilj\u00f8er med TypeScript-underst\u00f8ttelse straks kunne fremh\u00e6ve fejl i typet JavaScript-kode uden yderligere transformationer. Desuden vil den indbyggede typeunderst\u00f8ttelse g\u00f8re det muligt at k\u00f8re programmer skrevet i typede JavaScript-dialekter, s\u00e5som TypeScript og Flow, uden transpilation fra \u00e9t sprog til et andet.

\"Der<\/center> <\/p>\n

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\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Microsoft, Igalia \u0438 Bloomberg \u0432\u044b\u0441\u0442\u0443\u043f\u0438\u043b\u0438 \u0441 \u0438\u043d\u0438\u0446\u0438\u0430\u0442\u0438\u0432\u043e\u0439 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e JavaScript \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u0430 \u0434\u043b\u044f \u044f\u0432\u043d\u043e\u0433\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0442\u0438\u043f\u043e\u0432, \u043f\u043e\u0445\u043e\u0436\u0435\u0433\u043e \u043d\u0430 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0439 \u0432 \u044f\u0437\u044b\u043a\u0435 TypeScript. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043f\u0440\u043e\u0442\u043e\u0442\u0438\u043f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442 ECMAScript, \u0432\u044b\u043d\u0435\u0441\u0435\u043d \u0434\u043b\u044f \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u0439 (Stage 0). \u041d\u0430 \u0431\u043b\u0438\u0436\u0430\u0439\u0448\u0435\u043c \u043c\u0430\u0440\u0442\u043e\u0432\u0441\u043a\u043e\u043c \u0437\u0430\u0441\u0435\u0434\u0430\u043d\u0438\u0438 \u043a\u043e\u043c\u0438\u0442\u0435\u0442\u0430 TC39 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u0439\u0442\u0438 \u043d\u0430 \u043f\u0435\u0440\u0432\u0443\u044e \u0441\u0442\u0430\u0434\u0438\u044e \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u0438\u044f \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u0441 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":103541,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-103540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Det foresl\u00e5s at tilf\u00f8je syntaks med typeinformation til JavaScript | ProHoster","description":"Virksomhederne Microsoft, Igalia og Bloomberg har lanceret et initiativ om at inkludere syntaks til eksplicit typebestemmelse i 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