In this tutorial, we will be looking at what snapshot tests are and how we can use snapshot testing to ensure our user interface does not change without the team knowing about it. We’ll use Jest, a snapshot testing tool, to write tests for React components.
Cuando se crean aplicaciones Node rápidas en el momento, a veces es necesario una forma fácil y rápida de crear plantillas de nuestra aplicación. Hasta ahora hemos estado creando todo desde cero…
Streams are an efficient way to handle files in Node.js. In this tutorial, you’ll create a command-line program, and then use it with streams to read, write, copy, and transform files.
JavaScript includes several functions for working with arrays that go beyond the `for` loop. You may have used these functions in your own projects and wondered how they work and why you’d use one over another. There’s no better way to ensure that you understand how something works than building your own version from scratch. In this article you are going to do just that by creating your own versions of `map`, `reduce`, `sort`, and `filter` from scratch.
In this tutorial, we will create a React UI component library with Storybook, customize its theme, and deploy the React project as a static site.
L’auteur a choisi le Open Internet/Free Speech Fund pour recevoir un don dans le cadre du programme Write for DOnations. Les tests font partie intégrante du développement de…
¿Qué es el desplazamiento suave? En vez de hacer clic en un botón y ser llevado de forma instantánea a una parte diferente de la misma página, el usuario navega allà a través de una animación de desplazamiento. Es una de esas sutiles funciones en un sitio web que marcan una diferencia estética.
Snippets are a way to save time on development. Read this tutorial for a quick summary of using Simple React Snippets.
TypeScript is a superset of JavaScript that adds optional static typing at build time, which cuts down on debugging runtime errors. It’s static-typing abilities go well with a static-site generator like Gatsby, and Gatsby has built-in support for coding in TypeScript. In this tutorial, you’re going to use Gatsby’s built-in capabilities to configure a Gatsby project for TypeScript.
Con HTML5 llegó la introducción de las API con acceso al hardware del dispositivo, incluyendo la API MediaDevices. Esta API permite acceder a dispositivos de entrada multimedia como audio y video. En este tutorial, verá cómo acceder a las entradas de video desde las cámaras del dispositivo de un usuario.
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