React Tutorial For Beginners [ReactJS] | ReactJS Course | ReactJS For Beginners

In this React Tutorial for beginners, you will learn everything about ReactJS from basic to advance level. This ReactJS course video includes DOM & Virtual DOM, the difference between Class, Functions, and Components, React hooks, ReactJS Bootstrap, Angular vs React, how to become ReactJS Developer, React Interview Questions, and lots of hands-on demos. This ReactJS for beginners video is a must-watch for everyone who wishes to learn ReactJS and make a career in it.

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How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

• Performance: It delivers optimal performance.
• Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
• UI design: React Native enables you to design simple and responsive UI for your mobile app.
• 3rd party plugins: This framework supports 3rd party plugins.
• Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

• Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
• Near-native user experience: React Native provides several native components, and these are platform agnostic.
• The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

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Why ReactJS?

React JS is the most popular JS library for building UI (User Interfaces), which is created by Facebook. We can build fast Single Page, modern Applications, or websites with React. So, the question here arises is why React is so important. Let’s put some light on the features of react.

Features of React JS

1. Reusable UI components: Consider the Flipkart website, I want the same header on checkout, listing and account page etc. So, it’s better we should make one common
   component and import in all other modules.
2. **React Virtual DOM: **In React, Virtual DOM exists, which is like a lightweight copy of the actual DOM. Virtual DOM improves app performance since JS virtual DOM is faster than the regular DOM.

#reactjs #beginners-guide #basics-of-react #react-for-beginner #react-course #react

React Tutorial For Beginners [ReactJS] | ReactJS Course | ReactJS For Beginners

In this React Tutorial for beginners, you will learn everything about ReactJS from basic to advance level. This ReactJS course video includes DOM & Virtual DOM, the difference between Class, Functions, and Components, React hooks, ReactJS Bootstrap, Angular vs React, how to become ReactJS Developer, React Interview Questions, and lots of hands-on demos. This ReactJS for beginners video is a must-watch for everyone who wishes to learn ReactJS and make a career in it.

#react tutorial for beginners #reactjs course

ReactJS Tutorial for Beginners

Welcome to part-5 of the series. You can find part-4 here. We will learn about state in this part, but let’s first understand the difference between state and props.

props vs state

Since, react have two important concepts. One been props and other been state, they are compared a lot. And also differentiated a lot. Below diagram show the difference between them.

props vs state

state in code

As, per the above diagram state is managed within a component. So, we will first create a state variable. Create a new file Counter.js inside the component folder. It is a class based component and we have the class constructor in it. The state variable is declared with this.state inside a constructor and is an object. We can put any numbers of key-value pair in it.

We are declaring count inside the state variable, with the initial value of 0. Now, inside our render() method we access it by this.state.count.

Counter.js

Now, in localhost it will show the initial value.

localhost

Now, whenever we want to change the value of state, we do it thorough setState method. We have added a button and a onClick event to it. Next, we are calling **incrementCount **function.

On important thing to notice is that at line 9, we are using the bind. This is done because the this keyword will throw error, if we don’t give it.

Inside the **incrementCount **function, we are calling the this.setState and increasing the count value.

#react-js-development #react #react-js-tutorials #reactjs-development #react-js-training

Data Visualization in R with ggplot2: A Beginner Tutorial

A famous general is thought to have said, “A good sketch is better than a long speech.” That advice may have come from the battlefield, but it’s applicable in lots of other areas — including data science. “Sketching” out our data by visualizing it using ggplot2 in R is more impactful than simply describing the trends we find.

This is why we visualize data. We visualize data because it’s easier to learn from something that we can see rather than read. And thankfully for data analysts and data scientists who use R, there’s a tidyverse package called ggplot2 that makes data visualization a snap!

In this blog post, we’ll learn how to take some data and produce a visualization using R. To work through it, it’s best if you already have an understanding of R programming syntax, but you don’t need to be an expert or have any prior experience working with ggplot2

#data science tutorials #beginner #ggplot2 #r #r tutorial #r tutorials #rstats #tutorial #tutorials