React
Content:
1.What is Dom?
2.Difference:React vs Angular vs Vue
3.Advantage of using React
Document Object Model:
DOM, abbreviated as Document Object Model, is a World Wide Web Consortium standard logical representation of any webpage. In easier words, DOM is a tree-like structure that contains all the elements and it’s properties of a website as its nodes. DOM provides a language-neutral interface that allows accessing and updating of the content of any element of a webpage.
Before React, Developers directly manipulated the DOM elements which resulted in frequent DOM manipulation, and each time an update was made the browser had to recalculate and repaint the whole view according to the particular CSS of the page, which made the total process to consume a lot of time. As a betterment, React brought into the scene the virtual DOM. The Virtual DOM can be referred to as a copy of the actual DOM representation that is used to hold the updates made by the user and finally reflect it over to the original Browser DOM at once consuming much lesser time.
Testing
React is an open-source, front-end library developed by Facebook that’s used for creating web and mobile applications. React is termed as a library because, in an MVC architecture, it’s only the view layer and not a complete architecture.
Vue is an open-source, front-end library developed by Evan You, an ex-Google employee. Vue is used for creating web applications, and like React, it’s not a complete MVC framework.
2.Use Cases
React:
React was initially released in March 2013 and is extensively used by Facebook in almost all its applications. React is also being used by many companies like Netflix, Airbnb, Uber, Dropbox, Twitter, Reddit, and Pinterest.
Angular is a TypeScript-based JavaScript framework and was initially released in October 2010. Though not as popular as React, Angular is also being used by many companies like Forbes, Nike, upwork, Sony, HBO, and Wix.
Vue was initially released in February 2014 by ex-Google employee Evan You and has become popular even though it’s not backed by a big company the development team has only about a dozen developers. Vue is being used by a few companies like Xiaomi, Adobe, Grammarly, Alibaba, and also in many small projects.
React keeps a lightweight representation of the Real DOM in memory known as the Virtual DOM.When the state of an object changes, Virtual DOM changes only that object in the Real DOM instead of updating all the objects, and this makes things fast.
Since Angular uses Real DOM and not a Virtual DOM, it’s slower in comparison to React and Vue when rendering the web application. That means Angular updates the entire tree structure of the DOM whenever any object changes.
Vue uses Virtual DOM (VDOM) as an adopted concept of React. Like React, Vue updates only those objects that get changed in the “real” DOM, so the rendering speed is faster than Angular and similar to React.
React uses the one-way binding. First, the model state is updated, and then it renders the change in the UI element(view). Since the data flows only in a single direction, this makes it easier to debug React applications.
Angular uses two-way binding. Any changes made in the UI element is reflected in the corresponding model state and vice versa. It’s easier to implement, but debugging is comparatively difficult.
Vue supports both one-way binding and two-way binding, which is called reactive two-way data binding. It automatically selects the correct way to update the elements based on the type of input.
React combines UI templates and JavaScript logic, the concept which no framework had implemented before. The result is called the JSX. React makes use of a component, which contains both the markup and logic in the same file. React only requires the knowledge of JavaScript.
Angular uses TypeScript. TypeScript is a statically typed language, which means you must define the variable’s type (string, character, number, array, etc.). TypeScript is meant to be friendlier for the developers having an object oriented programming (OOP) background.
VueJS uses HTML, js, and CSS separately. The template-based approach for VueJS is straightforward, and new developers can easily adapt to this programming style promoted by Vue.
Jest is used by Facebook to run tests on React, is embedded in every React library, and requires zero configuration.
Angular uses Jasmine to run various tests. The Jasmine framework allows various functionalities to write different kinds of tests cases.
Vue CLI has built-in options for unit testing with Jest or Mocha. Vue’s single-file components make it straightforward to write unit tests for components in isolation.
Angular | React | Vue | |
Type | A Framework | Library to build UI | A library |
Why Choose | If you want to use TypeScript | If you want to go for "everything-is JavaScript" approach | Easy JavaScript and HTML |
Founders | Powered by Google | Maintained by Facebook | Created by Former Google Employee |
Initial Release | September 2016 | March 2013 | February 2014 |
Application Types | If you want to develop Native apps, hybrid apps, and web apps | If you want to develop SPA and mobile apps | Advanced SPA and started supporting Native apps |
Ideal for | If you want to focus on large-scale, feature-rich applications | Suitable for modern web development and native-rendered apps for iOS and Android | Ideal for web development and single-page applications |
Learning Curve | A steep learning curve | A little bit easier than Angular | A small learning curve |
Developer friendly | If you want to use the structure-based framework | If you want to have flexibility in the development environment | If you want to have separation of concerns |
Model | Based on MVC (ModelView-Controller)architecture | Based on Virtual DOM (Document Object Model) | Based on Virtual DOM (Document Object Model) |
Written in | TypeScript | JavaScript | JavaScript |
Community Support | A large community of developers and supporters | Facebook developers community | Open-source project sponsored through crowd-sourcing |
Language Preference | Recommends the use of TypeScript | Recommends the use of JSX JavaScript XML | HTML templates and JavaScript |
Popularity | Widely popular among developers | More than 27,000 stars added over the year | More than 40,000 stars added on GitHub during the year |
Companies Using | Used by Google, Forbes, Wix, and weather.com | Used by Facebook, Uber, Netflix, Twitter, Reddit, Paypal, Walmart, and others | Used by Alibaba, Baidu, GitLab, and others |
1.Intuitive:
ReactJS is extremely intuitive to work with and provides interactivity to the layout of any UI. Plus, it enables fast and quality assured application development that in turn saves tome for both - clients and developers.
2.Declarative:
ReactJS enables significant data changes that result in automatic alteration in the selected parts of user interfaces. Owing to this progressive functionality, there is no additional function that you need to perform to update your user interface.
3.Provides Reusable Components:
ReactJS provides reusable components that developers have the authority to reuse and create a new application . Reusability is exactly like a remedy for developers. This platform gives the developers the authority to reuse the components build for some other application having the same functionality. Thereby, reducing the development effort and ensuring a flawless performance.
4.JavaScript library:
A strong blend of JavaScript and HTML syntax is always used, which automatically simplifies the entire process of writing code for the planned project. The JS library consists several functions including one that converts the HTML components into required functions and transforms the entire project so that it is easy to understand.
5.Components Support:
ReactJS is a perfect combination of JavaScript and HTML tags. The usage of the HTML tags and JS codes, make it easy to deal with a vast set of data containing the document object model. During this time, ReactJS works as a mediator which represents the DOM and assists to decide which component needs changes to get the exact results.
6.SEO-friendly:
React JS was introduced after immense research and improvements by Facebook. Naturally, it stands out from the crowd and allows developers to build amazing, SEO-friendly user interfaces across browsers and engines.
7.Proficient Data Binding:
ReactJS trails one-way data binding. This means that absolutely anyone can track all the changes made to any particular segment of the data. This is a symbol of its simplicity.
Thank You....
