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Your best guide to React functions for web applications

React

Your best guide to React functions for web applications

In this series of articles, we will shed light on the role of React functions for web applications,how to code for its components, its connection to JavaScript programming and all related other programming languages.

 

From the first look at the name, it turns out that React is built specifically for programming in the JavaScript programming language, which was prepared by Facebook, it is known that it is a user interface.

React aims to make it easy to integrate programmatic logic directly into user interface in order to make it easier to work with each component individually.

How does React work?

React allows developers to design user interface components in an interactive way then reuse the same component many times and at different places.

Through a strong and stringent React functions for web applications, user interfaces can be easily built, that helps programmers while building these interfaces to reuse these functions multiple times and easily without having to rebuild them again.

React provides the ability to use the information that the developer learns while working with the React library, using a specific code via Node as well as the ability to build applications using react Native 2.

React Function Components

React functions for web applications components, they may be known as React functionality components, are used for writing React applications. In the past, there were many types of React components, but with React hooks introduction, it becomes possible to build an application with functions just as React components.

Through this detailed guide, we will explain everything about the components of the React programming language functions - which are basically just functions in the JavaScript language and are the components that return "JSX" which is the basic component of the React language.

It is possible after you have finished reading this series of tutorial articles, you will be ready to implement various modern applications of the React programming language.

Note that there are many components in the React language, so you may have seen a variety of variations of the React function component only" or the "React functions component".

An example of the components of the React function

We will give you a simple example of a React functional component defined as an application using JSX code:

import React from 'react';

function App()  }

  const greeting = 'Hello Function Component!';

  return <h1>{greeting}</h1>;

}

export default App;

Indeed this is the basic form of the React function component, and the component is defined with only JavaScript functions that return it to JSX code.

The syntax of React is a mixture of HTML and JavaScript, while JavaScript is used with curly braces within the HTML language.

In our case, we're showing you a variable called hello, which is defined in the component function, and returned as an HTML address in JSX.

Functional components of React and how they work

Note that React functions for web applications is a component without a run function, and all that is defined in the function is the render function that ultimately returns to the JSX code.

If you want to display a React component inside a function component, you need to define another component that you are using as an HTML element with JSX code inside the body of the other component:

 

import React from 'react';

 

function App() {

  return <Headline />;

}

function Headline() {

  const greeting = 'Hello Function Component!';

  return <h1>{greeting}</h1>;

}

export default App;

Basically you have a function component, defining React components and placing them inside each other makes compositing in React possible, so you can decide where and how to render the component.

In the next article, we will continue the journey and learn new information related to React programming, especially React function component: Props.

Props is used in reference to data that is transferred from one component to another and is called "props" and is the way the React library deals with data exchanged between a React component and another React component