How to use condition in react js?

Hi Friends 👋,

Welcome To aHoisting!

To use condition in react js, you can use if keyword to condition in react js, that is how you can use condition in react js.

Today, I am going to show you, how to use condition in react js.

Table of contents

• Install and create a new React app.
• Import react component.
• Create a Component.

Let’s start with the first step.

Step 1: Install and create a new React app.

First you have to install the React project. You should use create-react-app command to create a new React project.

npx create-react-app my-app
cd my-app
npm start

Step 2: Import react component.

After installing, you have to import your React component.

import React from 'react';

Step 3: Create a Component.

You can use if Statement to use condition in react js.

<div>
  {(() => {
    if (isLoggedIn) {
      return <h1>Welcome back!</h1>;
    }
  return <h1>Please log in.</h1>;
  })()}
</div>

Use condition example.

The below code is an example of a React. You have to import react and use if Statement to use condition in react js.

App.js

import React from 'react';

function App({ isLoggedIn }) {
  return (
    <div>
      {(() => {
        if (isLoggedIn) {
          return <h1>Welcome back!</h1>;
        }
        return <h1>Please log in.</h1>;
      })()}
    </div>
  );
}


export default App;

In the above code example, I have used the if Statement to use condition in react js.

Check the output of the above code.

All the best 👍