React Introduction

-

 


What is React?

React is a JavaScript library (not a framework) that creates user interfaces (UIs) in a predictable and efficient way using declarative code. You can use it to help build single page applications and mobile apps, or to build complex apps if you utilize it with other libraries

 

React.JS History

Facebook Software Engineer, Jordan Walke, created it.

React.JS was first used in 2011 for Facebook's News feed feature.

The create-react-app version 2.0 package was released in October 2018.

Initial Release to the Public (V0.3.0) was in July 2013.

Create-react-app version 2.0 supports Babel 7, webpack 4, and Jest23.

Current version of React.JS is 17.0.1 (October 22, 2020).

 

Setting up a React Environment

Install create-react-app by running this command in your terminal:

sudo wget -qO- https://deb.nodesource.com/setup_14.x | sudo -E bash

sudo apt-get install -y nodejs

node -v

npm -v

Run this command to create a React application named myfirstreact:

npx create-react-app myfirstreact

 Run this command to move to the myfirstreact directory:

cd myfirstreact

Run this command to run the React application myfirstreact:

npm start



The result:


Comments

Post a Comment

Popular posts from this blog

ICTT Exam Past-paper Answers

-
Image
 July 2022 1. i) MS Word has various features to offer to the users, list down four (04) features that are available in MS Word?  Home Insert Page Layout Reference Review ii) What is the difference between formulas and functions in MS Excel? formula When a user types an equals sign in a cell, they are starting to create a formula . Examples of a formula include: =4+3 =A3+C9 =B7+B8-(4*2)+1 function When a user types an equals sign followed by a predefined set of letters (or clicks on the Fx button in the formula bar), a function begins to be implemented. =SUM(A3 : A27) =AVERAGE(F4 : F8) iii)What are the functions of the Search Engines? Give two examples for Search Engines? helps people find the information they are looking for online using keywords or phrases. A  search   engine  is a large database of internet resources like web pages, images, programs among other things resources and information. iv)What are the benefits of using BCC in email? Protecting Email Address Privacy For s
Read more

HTML Introduction

-
Image
  What is HTML? HTML stands for Hyper text Markup language. HTML is he standard markup language for creating web pages. HTML describe the structure of a web page. HTML consists of a series of elements . HTML elements tell the browser how to display the content. HTML elements label pieces of content such as “this is a heading”,”this is a paragraph”,”this is a ink” ,etc. A simple HTML Document The < !DOCTYPE html > Declaration define that this document is an HTM5 document. The < html > element is the root element of an HTML page. The < head > element contains meta information about the HTML page. The < title > element specifies a title fro the HTML page (which is shown in the brewser’s title bar or in the page’s tab). The < body > element define the document’s body,and is contain for all the visibe contents such as heading,paragraph,images,hyperlinks,tables,lists etc. The < h1 > elements defin
Read more

Perform internet and electronic mail operations

-
Image
  This unit we are going to learn about internet and it’s usage. In additional we are going to learn about a milestone of the internet called “ electronic mail” (gmail) deeply. What is internet  Internet is a  feature to access many resource throw network of network ( simply network of network)  What is e-mail  e-mail ( electronic mail) is a feature of internet to communicate once or more people throw mails  Web Browser web Browser is an application software that allows us to view and explore information on the web. User can request for any web page by just entering a URL into address bar. Web browser can show text, audio, video, animation and more. It is the responsibility of a web browser to interpret text and commands contained in the web page. Earlier the web browsers were text-based while now a days graphical-based or voice- based web browsers are also available. Following are the most common web browser available today: Browser                                          Vendor
Read more