How to Create a Component in Inferno

Inferno is a popular open-source JavaScript library for building user interfaces. It is designed to be fast, lightweight, and easy to use. In this tutorial, we will learn how to create a component in Inferno and render it on the page.

Install Inferno

The first step is to install Inferno. You can do this using npm or yarn. For example, if you are using npm, you can run the following command:

npm install inferno

Once Inferno is installed, you can import it into your project. For example, if you are using ES6, you can use the following code:

import Inferno from 'inferno';

Create a Component

Now that Inferno is installed, we can create a component. Components are the building blocks of Inferno applications. They are reusable pieces of code that can be used to create complex user interfaces. To create a component, we need to use the createClass method. This method takes an object as an argument. The object should contain a render method, which is used to render the component on the page.

For example, we can create a simple component like this:

const MyComponent = Inferno.createClass({ render() { return ( <div>Hello World!</div> ); }});

This component will render a <div> element with the text “Hello World!”.

Render the Component

Once we have created a component, we need to render it on the page. To do this, we can use the render method. This method takes two arguments: the component to render and the DOM element to render it into. For example, if we want to render our component into a <div> element with the id “root”, we can use the following code:

Inferno.render(<MyComponent />, document.getElementById('root'));

This will render our component into the <div> element with the id “root”.

Add Props

Props are used to pass data from a parent component to a child component. To add props to a component, we need to use the props argument in the createClass method. For example, if we want to pass a message to our component, we can do this:

const MyComponent = Inferno.createClass({ props: { message: 'Hello World!' }, render() { return ( <div>{this.props.message}</div> ); }});

This will render the message “Hello World!” in the <div> element.

Access Props

Once we have added props to a component, we need to access them in the component’s render method. To do this, we can use the this.props object. For example, if we want to access the message prop we added in the previous step, we can use the following code:

<div>{this.props.message}</div>

This will render the message “Hello World!” in the <div> element.

Conclusion

In this tutorial, we learned how to create a component in Inferno and render it on the page. We also learned how to add props to a component and access them in the component’s render method. With these skills, you should be able to create complex user interfaces with Inferno.

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