{"id":101400,"date":"2021-09-25T10:22:59","date_gmt":"2021-09-25T08:22:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-elk-razvivaet-kompaktnyj-javascript-dvizhok-dlya-mikrokontrollerov"},"modified":"2021-09-25T10:22:59","modified_gmt":"2021-09-25T08:22:59","slug":"proekt-elk-razvivaet-kompaktnyj-javascript-dvizhok-dlya-mikrokontrollerov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/proekt-elk-razvivaet-kompaktnyj-javascript-dvizhok-dlya-mikrokontrollerov","title":{"rendered":"El proyecto elk desarrolla un motor JavaScript compacto para microcontroladores.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Est\u00e1 disponible una nueva versi\u00f3n del motor JavaScript elk 2.0.9, dise\u00f1ado para su uso en sistemas con recursos limitados, como microcontroladores, incluidas las placas ESP32 y Arduino Nano con 2 KB de RAM y 30 KB de Flash. Para operar la m\u00e1quina virtual proporcionada, se requieren solo 100 bytes de memoria y 20 KB de espacio de almacenamiento. El c\u00f3digo del proyecto est\u00e1 escrito en C y se distribuye bajo la licencia GPLv2. Para compilar el proyecto, solo se necesita un compilador de C; no se utilizan dependencias adicionales. El proyecto est\u00e1 en desarrollo por los desarrolladores del sistema operativo para dispositivos IoT Mongoose OS, el motor JavaScript mJS y la integraci\u00f3n embebida. un servidor web<\/a> Mongoose (utilizado en productos de empresas como Siemens, Schneider Electric, Broadcom, Bosch, Google, Samsung y Qualcomm). <\/p>\n

El prop\u00f3sito principal de Elk es crear firmware para microcontroladores en lenguaje JavaScript que realicen diversas tareas de automatizaci\u00f3n. El motor tambi\u00e9n es adecuado para incrustar controladores en JavaScript en aplicaciones en C\/C++. Para usar el motor en su c\u00f3digo, es suficiente colocar el archivo elk.c en el \u00e1rbol de fuentes, incluir el archivo de cabecera elk.h y utilizar la llamada js_eval. Se permite la llamada desde scripts de JavaScript a funciones definidas en c\u00f3digo C\/C++, y viceversa. El c\u00f3digo JavaScript se ejecuta en un entorno protegido e isolado del c\u00f3digo principal utilizando un int\u00e9rprete que no genera bytecode y no utiliza asignaci\u00f3n din\u00e1mica de memoria. <\/p>\n

En Elk se ha implementado un subconjunto peque\u00f1o, pero suficiente para crear scripts funcionales, de la especificaci\u00f3n Ecmascript 6. En particular, se admite un conjunto b\u00e1sico de operadores y tipos, pero no hay soporte para arreglos, prototipos, expresiones this, new y delete. En lugar de var y const, se sugiere usar let, y en lugar de do, switch y for, se debe usar while. No se proporciona una biblioteca est\u00e1ndar, es decir, no hay objetos como Date, Regexp, Function, String y Number.
\n
Fuente: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a JavaScript-\u0434\u0432\u0438\u0436\u043a\u0430 elk 2.0.9, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u043c\u0438 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438, \u0442\u0430\u043a\u0438\u043c\u0438 \u043a\u0430\u043a \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u044b, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u043f\u043b\u0430\u0442\u044b ESP32 \u0438 Arduino Nano \u0441 2 \u041a\u0411 \u041e\u0417\u0423 \u0438 30\u041a\u0411 Flash. \u0414\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b 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[…]<\/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-101400","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47El proyecto elk desarrolla un motor JavaScript compacto para microcontroladores | ProHoster","description":"Est\u00e1 disponible una nueva versi\u00f3n del motor JavaScript elk 2.0.9, dise\u00f1ada para su uso en sistemas con recursos limitados, como microcontroladores, incluyendo placas ESP32 y Arduino Nano con 2 KB de RAM y 30 KB de 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