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Showing posts from April, 2021
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  React ReactJS is a declarative, efficient, and flexible JavaScript library for building reusable UI components. It is an open-source, component-based front end library responsible only for the view layer of the application. It was created by  Jordan Walke ,  who was a software engineer at  Facebook .   How does React works React creates a VIRTUAL DOM in memory. Instead of manipulating the browser's DOM directly, React creates a virtual DOM in memory, where it does all the necessary manipulating, before making the changes in the browser DOM. React only changes what needs to be changed! React finds out what changes have been made, and changes  only  what needs to be changed. To use React in production, you need NPM and Node.js To get an overview of what React is, you can write React code directly in HTML. But in order to use React in production, you need NPM and Node.js installed.   React.js History ·          Current version of React.JS is V16.8.6 (March 2019
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  Koa.js  was designed by the team behind express. It is an open source Node.js web framework. As their  official website  says, the framework aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. Asynchronous function uses Koa.js to help eliminate the need for callbacks and significantly improves error handling. Koa.js features           Koa.js has its own unique features that make it more developer friendly and expressive. There under the highlights of features in Koa. 1.Koa.js is modern than other Node.js frameworks, Koa.js provides a bunch of new classes and modules, which makes the development of complex applications simpler, which is based on ES6. This helps developers to do creational maintainable applications. 2.ES6 generators use to simplify synchronous programming and facilitate the flow of controls. 3.Koa.js has a small footprint compared to other Node.js frameworks. That helps developers to write thinner middleware. 4