The Graph Visualization Toolkit for React

To help you get started with ReGraph, this step-by-step tutorial covers everything you need to know. Once we’ve created our visualization in a React app, we’ll load an example network of suspected terrorists and show how easy it is to apply the key analysis techniques your users need to uncover threats.

Before the tutorial, let’s learn a little more about ReGraph.

ReGraph: How it works

ReGraph contains two React components, a chart and a time bar. Both components are designed from the ground-up to fit into modern React environments. The fully data-driven approach allows for modern, responsive, and declarative visualization of your data.

Powered by WebGL, ReGraph offers fast, reliable performance even when visualizing large, complex networks. And like React, it works with all major browsers and devices.

ReGraph comes loaded with high-performance graph analysis functions and other features to help analysts discover critical insights more quickly. They can take advantage of social network analysis measures, advanced map-based analysis, automatic layouts, grouping and combining, and much more.

We’ll look at a couple of these in more detail — but first, let’s get ReGraph working in an app.

Step 1: Add ReGraph to your React project

If you don’t have a React project set up, you can bootstrap one in seconds with create-react-app:

npx create-react-app my-regraph-app

Next, download ReGraph. If you haven’t already, join the EAP. You’ll get full access to the ReGraph SDK site containing the latest ReGraph package, detailed developer tutorials, interactive demos, and a fully-documented API.

Add ReGraph to your project by installing it with a package manager. We’ll use npm:

npm install ../path/to/regraph-0.5.0.tgz

Step 2: Import ReGraph and create a chart

To access ReGraph from your app, simply import it alongside React:

import React from ‘react’;
import { Chart } from ‘regraph’;

You can then render the Chart in JSX. To create a chart and load a dummy item, use:

<Chart items={{
   node1: {
      color: ‘#bbdefb’,
      label: { text: 'Welcome to ReGraph!' }
    }
}}/>

And that’s it: ReGraph is running in your application!

Step 3: Load data

ReGraph works with any data repository — databases, web services, CSV files, etc. All you have to do is convert the data into the simple JavaScript format ReGraph expects. Here’s what our converted network of suspected terrorists looks like:

// A node with id N8
N8: {
  color: '#ff867c',
  label: {
    text: 'Mohammed Ibrahim Makkawi',
  },
  data: {
    country: 'Afghanistan',
  }
},
// A link between N8 and N99
'N8/p/N99': {
  id1: 'N8',
  id2: 'N99',
  width: 5,
  color: '#f3e5f5'
}

You’ll find descriptions of every supported prop, event, and style option on the ReGraph SDK site.

Next, we pass this object into the items prop of our chart and ReGraph automatically draws it for us. In a React app, we usually load our items from the app state or props. We’ll read from state in this example, which means we can re-render whenever the items change:

componentDidMount() {
  const data = await loadData();
  const items = convertData(data);
  this.setState({ items });
}
render() {
  const { items } = this.state;
  <Chart items={items} />
}

The items prop is fully reactive. When you pass a new object into it, ReGraph looks for changes since its last render and updates the chart if necessary. New items slide into view, removed items fade out, and color and position changes transition with smooth animation.

That’s it! We’ve got our chart working and our data loaded. Now let’s see how we can make sense of our chart.

Make sense of your graph visualizations

Right now, it’s hard to get useful insight from our complex network of connections, but ReGraph comes with a range of features to help you understand the data. Let’s focus on two of them: combos and SNA measures.

Reducing clutter with combos

In very busy charts with lots of nodes and links, it’s hard to differentiate between what’s important and what’s not.

The smart way to reduce the number of items is to group together nodes with similar properties. We call these combined nodes combos. For example, our dataset contains the country of origin for each terrorist suspect. Grouping suspects by country gives us a beautifully clean high-level view of the data:

Notice how ReGraph automatically combines multiple links between nodes into a single link between combos.

Creating combos in ReGraph is really straightforward. You just set the combine prop to tell ReGraph which data properties to use for grouping. Setting the level property will enable or disable combos:

<Chart
  items={items}
  combine={{properties: [‘country’], level: 1}}
/>

We can still drill down into the detail when we need it by “opening” each combo to show what’s inside. If there’s a specific node worth investigating further, we can easily highlight the nodes and combos it's connected to.

Sizing nodes by SNA centrality

Graph theory provides a number of ways to assess the importance of each node, which ReGraph exposes as a number of social network analysis (SNA) functions.

Analyzing social connections in any network can reveal important information about information flow, hidden subnetworks, dependencies, and influential nodes.

An effective way to make highly-connected nodes stand out is by making them larger. Here, we’ve counted how many connections each terrorist suspect has and sized them accordingly:

ReGraph supports other powerful SNA centrality measures too, including betweenness to find the ‘gatekeepers’ in a network, and closeness to identify how easily a node can reach the rest of the network.

All these measures are available through function calls with simple APIs — very similar to the example above — so experimenting with them is easy. The ReGraph SDK also features interactive examples of centrality measures to show how they reveal different insights from your data.

Thanks for reading. If you liked this post, share it with all of your programming buddies!

Further reading

☞ How to Build First React Website

☞ The Complete React Native and Redux Course

☞ React Native - The Practical Guide

☞ React Native: Advanced Concepts

☞ Understanding TypeScript

☞ Typescript Masterclass & FREE E-Book

☞ React - The Complete Guide (incl Hooks, React Router, Redux)

☞ Modern React with Redux [2019 Update]

☞ The Complete React Developer Course (w/ Hooks and Redux)

☞ React JS Web Development - The Essentials Bootcamp

☞ React JS, Angular & Vue JS - Quickstart & Comparison

☞ The Complete React Js & Redux Course - Build Modern Web Apps

☞ React JS and Redux Bootcamp - Master React Web Development

This post was originally published here

#reactjs #react-native #javascript #graphql #database #web-development

What is GEEK

Buddha Community

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.

#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native

How to Select and Hire the Best React JS and React Native Developers?

Since March 2020 reached 556 million monthly downloads have increased, It shows that React JS has been steadily growing. React.js also provides a desirable amount of pliancy and efficiency for developing innovative solutions with interactive user interfaces. It’s no surprise that an increasing number of businesses are adopting this technology. How do you select and recruit React.js developers who will propel your project forward? How much does a React developer make? We’ll bring you here all the details you need.

What is React.js?

Facebook built and maintains React.js, an open-source JavaScript library for designing development tools. React.js is used to create single-page applications (SPAs) that can be used in conjunction with React Native to develop native cross-platform apps.

React vs React Native

• React Native is a platform that uses a collection of mobile-specific components provided by the React kit, while React.js is a JavaScript-based library.
• React.js and React Native have similar syntax and workflows, but their implementation is quite different.
• React Native is designed to create native mobile apps that are distinct from those created in Objective-C or Java. React, on the other hand, can be used to develop web apps, hybrid and mobile & desktop applications.
• React Native, in essence, takes the same conceptual UI cornerstones as standard iOS and Android apps and assembles them using React.js syntax to create a rich mobile experience.

What is the Average React Developer Salary?

In the United States, the average React developer salary is $94,205 a year, or $30-$48 per hour, This is one of the highest among JavaScript developers. The starting salary for junior React.js developers is $60,510 per year, rising to $112,480 for senior roles.

* React.js Developer Salary by Country

• United States- $120,000
• Canada - $110,000
• United Kingdom - $71,820
• The Netherlands $49,095
• Spain - $35,423.00
• France - $44,284
• Ukraine - $28,990
• India - $9,843
• Sweden - $55,173
• Singapore - $43,801

In context of software developer wage rates, the United States continues to lead. In high-tech cities like San Francisco and New York, average React developer salaries will hit $98K and $114per year, overall.

However, the need for React.js and React Native developer is outpacing local labour markets. As a result, many businesses have difficulty locating and recruiting them locally.

It’s no surprise that for US and European companies looking for professional and budget engineers, offshore regions like India are becoming especially interesting. This area has a large number of app development companies, a good rate with quality, and a good pool of React.js front-end developers.

As per Linkedin, the country’s IT industry employs over a million React specialists. Furthermore, for the same or less money than hiring a React.js programmer locally, you may recruit someone with much expertise and a broader technical stack.

How to Hire React.js Developers?

• Conduct thorough candidate research, including portfolios and areas of expertise.
• Before you sit down with your interviewing panel, do some homework.
• Examine the final outcome and hire the ideal candidate.

Why is React.js Popular?

React is a very strong framework. React.js makes use of a powerful synchronization method known as Virtual DOM, which compares the current page architecture to the expected page architecture and updates the appropriate components as long as the user input.

React is scalable. it utilises a single language, For server-client side, and mobile platform.

React is steady.React.js is completely adaptable, which means it seldom, if ever, updates the user interface. This enables legacy projects to be updated to the most new edition of React.js without having to change the codebase or make a few small changes.

React is adaptable. It can be conveniently paired with various state administrators (e.g., Redux, Flux, Alt or Reflux) and can be used to implement a number of architectural patterns.

Is there a market for React.js programmers?
The need for React.js developers is rising at an unparalleled rate. React.js is currently used by over one million websites around the world. React is used by Fortune 400+ businesses and popular companies such as Facebook, Twitter, Glassdoor and Cloudflare.

Final thoughts:

As you’ve seen, locating and Hire React js Developer and Hire React Native developer is a difficult challenge. You will have less challenges selecting the correct fit for your projects if you identify growing offshore locations (e.g. India) and take into consideration the details above.

If you want to make this process easier, You can visit our website for more, or else to write a email, we’ll help you to finding top rated React.js and React Native developers easier and with strives to create this operation

#hire-react-js-developer #hire-react-native-developer #react #react-native #react-js #hire-react-js-programmer

What are hooks in React JS? - INFO AT ONE

In this article, you will learn what are hooks in React JS? and when to use react hooks? React JS is developed by Facebook in the year 2013. There are many students and the new developers who have confusion between react and hooks in react. Well, it is not different, react is a programming language and hooks is a function which is used in react programming language.
Read More:- https://infoatone.com/what-are-hooks-in-react-js/

#react #hooks in react #react hooks example #react js projects for beginners #what are hooks in react js? #when to use react hooks

React 18: Things You Need To Know About React JS Latest Version

The most awaited version of React 18 is finally out now. Its team has finally revealed the alpha version of React 18 and its plan, though the official launch is still pending. This time the team has tried something and released the plan first to know their user feedback because the last version of React 17 was not that much appreciated among developers.

According to Front-end Frameworks Survey, React JS has ranked top in the list of most loved frameworks. Thus, the developer communities expect a bit higher from the framework, so they are less appreciative of the previous launch.
So, this time React 18 will be a blast. For beginners, the team is working on a new approach. They have called a panel of experts, library authors, educators, and developers to take part in a working group. Initially, it will be a small group.

I am not a part of this release but following the team on their GitHub discussion group. After gathering the information from there, I can say that they have planned much better this time.

React 17 was not able to meet the developer's community. The focus was all primarily centered on making it easier to upgrade React itself. React 18 release will be the opposite. It has a lot of features for react developers.

Read more here: React 18: Things You Need To Know About React JS Latest Version

#hire react js developers #hire react js developers india #react developers india #react js developer #react developer #hire react developers

Build a simple React Native Pokemon app with React-Navigation

As we start learning new technologies we want to start building something or work on a simple project to get a better understanding of the technology. So, let’s build this simple app.
For this app, we will be using PokeApi to get our pokemon data, and also we will be using Hooks. I am using pokemondb for pokemon sprites. It’s just a personal preference you can use whatever you want.

#react-native #react-native-app #react-navigation #react-native-development #react