{"id":55548,"date":"2020-01-23T00:00:00","date_gmt":"2020-01-22T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/novaya-versiya-vstraivaemogo-javascript-dvizhka-ot-osnovatelya-qemu-i-ffmpeg"},"modified":"2020-02-18T14:03:40","modified_gmt":"2020-02-18T11:03:40","slug":"novaya-versiya-vstraivaemogo-javascript-dvizhka-ot-osnovatelya-qemu-i-ffmpeg","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/novaya-versiya-vstraivaemogo-javascript-dvizhka-ot-osnovatelya-qemu-i-ffmpeg","title":{"rendered":"Nueva versi\u00f3n del motor JavaScript embebido del fundador de QEMU y FFmpeg","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

El matem\u00e1tico franc\u00e9s Fabrice Bellard, creador de los proyectos QEMU y FFmpeg, ha publicado una actualizaci\u00f3n de su compacto motor JavaScript embebido QuickJS<\/a><\/noindex>. El motor soporta la especificaci\u00f3n ES2019 y extensiones matem\u00e1ticas adicionales, como los tipos BigInt y BigFloat. En cuanto a rendimiento, QuickJS supera notablemente a<\/a><\/noindex> los equivalentes existentes (XS<\/a><\/noindex> por un 35%, DukTape<\/a><\/noindex> m\u00e1s de dos veces, JerryScript<\/a><\/noindex> tres veces, y MuJS<\/a><\/noindex> siete veces). El proyecto ofrece una biblioteca para integrar el motor, un int\u00e9rprete qjs para ejecutar c\u00f3digo JavaScript desde la l\u00ednea de comandos y un compilador qjsc para generar archivos ejecutables independientes. El c\u00f3digo est\u00e1 escrito en C y se distribuye<\/a><\/noindex> bajo la licencia MIT. Se puede leer m\u00e1s sobre el proyecto en el texto del anuncio del primer lanzamiento<\/a><\/noindex>.<\/p>\n

. La nueva versi\u00f3n a\u00f1ade soporte experimental para el tipo BigDecimal<\/a><\/noindex>, que permite manipular n\u00fameros decimales con precisi\u00f3n arbitraria (an\u00e1logo a BigInt para n\u00fameros en base 10). Se ha actualizado la implementaci\u00f3n de la sobrecarga de operadores. Se han a\u00f1adido ejemplos<\/a><\/noindex> programas para el c\u00e1lculo eficiente del n\u00famero Pi con una precisi\u00f3n de hasta mil millones de cifras despu\u00e9s del punto decimal (como matem\u00e1tico, Fabrice Bellard es conocido como el creador de la f\u00f3rmula m\u00e1s r\u00e1pida para calcular el n\u00famero Pi).<\/p>\n

<\/a><\/noindex><\/p>\n

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

\u0424\u0440\u0430\u043d\u0446\u0443\u0437\u0441\u043a\u0438\u0439 \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u043a \u0424\u0430\u0431\u0440\u0438\u0441 \u0411\u0435\u043b\u043b\u0430\u0440 (Fabrice Bellard), \u043e\u0441\u043d\u043e\u0432\u0430\u0432\u0448\u0438\u0439 \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u044b QEMU \u0438 FFmpeg, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0438\u043c \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0433\u043e \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e JavaScript-\u0434\u0432\u0438\u0436\u043a\u0430 QuickJS. \u0414\u0432\u0438\u0436\u043e\u043a \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e ES2019 \u0438 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a \u0442\u0438\u043f\u044b BigInt \u0438 BigFloat. \u041f\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 QuickJS \u0437\u0430\u043c\u0435\u0442\u043d\u043e \u043f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u0438\u0442 \u0438\u043c\u0435\u044e\u0449\u0438\u0435\u0441\u044f \u0430\u043d\u0430\u043b\u043e\u0433\u0438 (XS \u043d\u0430 35%, DukTape \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430, JerryScript \u0432 \u0442\u0440\u0438 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