September 2024
Intermediate to advanced
706 pages
22h 41m
Spanish
Content preview from JavaScript: La Guía Definitiva, 7ª Edición
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Capítulo 16. JavaScript del lado del servidor con Node
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Node es JavaScript con enlaces al sistema operativo subyacente, lo que permite escribir programas JavaScript que leen y escriben archivos, ejecutan procesos hijo y se comunican a través de la red. Esto hace que Node sea útil como:
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Alternativa moderna a los scripts de shell que no adolece de la sintaxis arcana de bash y otros shells de Unix.
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Lenguaje de programación de uso general para ejecutar programas de confianza, no sujeto a las restricciones de seguridad impuestas por los navegadores web al código no fiable.
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Entorno popular para escribir servidores web eficientes y altamente concurrentes.
La característica que define a Node en es su concurrencia basada en eventos de un solo hilo, habilitada por una API asíncrona por defecto. Si has programado en otros lenguajes pero no has codificado mucho en JavaScript, o si eres un programador experimentado de JavaScript del lado del cliente acostumbrado a escribir código para navegadores web, utilizar Node te supondrá un pequeño ajuste, como lo es cualquier lenguaje o entorno de programación nuevo. Este capítulo comienza explicando el modelo de programación de Node, haciendo hincapié en la concurrencia, la API de Node para trabajar con datos en streaming y el tipo Buffer de Node para trabajar con datos binarios. Estas secciones iniciales van seguidas de secciones ...
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