Cross-Origin Resource Sharing (CORS) is a security feature implemented by web browsers that prevents web pages from making requests to a different domain than the one that the web page is served from. This is known as the “same-origin policy”. For example, if a web page is served from “https://example.com”, it will not be able
As a web developer, you want to create websites that are accessible to all users, regardless of their abilities or disabilities. By making your website accessible, you can ensure that everyone has the opportunity to access and use your content and services. In this blog post, we’ll discuss what web accessibility is, and how you
As a designer, you want to create user interfaces that are consistent, high-quality, and easy to use. To achieve this, you can use a design system, which is a set of standards, guidelines, and resources that help you design and build user interfaces. In this blog post, we’ll discuss what a design system is, and
As a React developer, you want to ensure that your applications are stable and reliable, and provide a smooth user experience. One way to do this is by setting up end-to-end (E2E) testing for your React applications. In this blog post, we’ll discuss what E2E testing is, and how you can set it up for
As a JavaScript developer, you want to write high-quality, maintainable code that is well-suited to the needs of your project and your team. To achieve this, it’s important to follow best practices for software engineering. In this blog post, we’ll discuss some of the top software engineering best practices for JavaScript developers, and provide examples
Sorting and grouping data is a common task in software development. In this blog post, we’ll demonstrate how to sort and group orders and products from a JSON file using JavaScript. We’ll provide a sample JSON file and a code example to illustrate the techniques and concepts involved. Parsing the JSON data The first step
RxJS, the popular library for reactive programming using observables, has recently released a new version that includes a number of powerful new operators. In this post, we’ll take a look at some of the most exciting ones and show you how to use them in your own code. First, let’s start with the pipe operator,
RxJS is a popular library for reactive programming in JavaScript. It provides a wide range of operators and utilities for working with streams of data, allowing developers to easily manipulate and transform data in real time. Here are some basic examples of how to use RxJS to create and manipulate streams of data: Creating observables
Reactive programming is a programming paradigm that allows developers to build applications that can react to changes in data as they occur. In JavaScript, this is typically achieved using observables, which are objects that emit a stream of events that can be subscribed to and processed by other parts of the application. For example, consider
Here are the steps to create a React components library with Storybook: Create a new project using the create-react-app command. This will create a new project with a basic React app, including all the necessary dependencies and scripts. Copy code npx create-react-app my-components-library Install the @storybook/react package. This package contains the necessary tools to build
