{"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\/it\/blog\/novosti-interneta\/v-yazyk-javascript-predlozheno-dobavit-sintaksis-s-informacziej-o-tipah","title":{"rendered":"Il linguaggio JavaScript potrebbe includere una sintassi per l'informazione sui tipi.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Le aziende Microsoft, Igalia e Bloomberg hanno proposto l'inserimento nella specifica JavaScript di una sintassi per la definizione esplicita dei tipi, simile a quella utilizzata nel linguaggio TypeScript. Attualmente, il prototipo delle modifiche proposte per l'inclusione nello standard ECMAScript \u00e8 in fase di discussione preliminare (Stage 0). Durante la prossima riunione di marzo del comitato TC39, \u00e8 previsto il passaggio alla prima fase di esame della proposta con il coinvolgimento della comunit\u00e0 di esperti di ECMA. <\/p>\n

Avere informazioni chiaramente definite sulle tipologie aiuter\u00e0 a evitare molti errori durante lo sviluppo, permetter\u00e0 di utilizzare tecniche di ottimizzazione aggiuntive, semplificher\u00e0 il debug e render\u00e0 il codice pi\u00f9 leggibile e facile da modificare e mantenere per altri sviluppatori. Si propone di realizzare il supporto dei tipi come un'opzione facoltativa: i motori JavaScript e i runtime che non supportano il controllo dei tipi ignoreranno le annotazioni relative alle informazioni sui tipi e gestiranno il codice come prima, trattando i dati sui tipi come commenti. Tuttavia, gli strumenti di verifica dei tipi potranno, sulla base delle informazioni disponibili, identificare errori legati a un uso scorretto dei tipi. <\/p>\n

A differenza delle informazioni sui tipi fornite tramite annotazioni JSDoc specificate nei commenti, l'indicazione diretta dei tipi all'interno delle strutture di definizione delle variabili rende il codice pi\u00f9 chiaro, comprensibile e facile da modificare. Ad esempio, gli ambienti di sviluppo integrati che supportano TypeScript possono evidenziare immediatamente gli errori nel codice JavaScript tipizzato senza ulteriori trasformazioni. Inoltre, il supporto incorporato dei tipi consentir\u00e0 di eseguire programmi scritti in dialetti tipizzati di JavaScript, come TypeScript e Flow, senza necessit\u00e0 di transpilarli da un linguaggio all'altro.

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

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\n
Fonte: 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-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47\u00c8 stato proposto di aggiungere una sintassi con informazioni sui tipi al linguaggio JavaScript | ProHoster","description":"Le aziende Microsoft, Igalia e Bloomberg hanno proposto di includere nella specifica di JavaScript una sintassi per la definizione esplicita dei tipi, simile a quella utilizzata nel linguaggio TypeScript. Attualmente, il prototipo delle modifiche suggerite per l'inclusione nello standard ECMAScript \u00e8 in fase di discussione preliminare (Stage 0). 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