ReactJS Evergreen Radio Component

Last Updated : 11 Jun, 2021

React Evergreen is a popular front-end library with a set of React components for building beautiful products as this library is flexible, sensible defaults, and User friendly. Radio Component allows the user to select one option from a set or list of items. We can use the following approach in ReactJS to use the Evergreen Radio Component.

Radio Props:

id: It is used to denote the id attribute of the radio.
name: It is used to define the name attribute of the radio.
label: It is used to denote the label of the radio.
value: It is used to denote the value attribute of the radio.
onChange: It is a callback function that is called when the state changes.
disabled: The radio is disabled when this is set to true.
checked: The radio is checked when this is set to true.
size: It is used to denote the size of the radio circle.
isRequired: The radio gets the required attribute when this is set to true.
isInvalid: The aria-invalid attribute is true when this is set to true.
appearance: It is used for the appearance of the checkbox.

RadioGroup Props:

options: It is used to pass the options for the radios of the Radio Group.
value: It is used to denote the selected item value when controlled.
defaultValue: It is used to denote the default value of the Radio Group when uncontrolled.
onChange: It is a callback function that is called when the state changes.
label: It is used to denote the label of the radio.
size: It is used to denote the size of the radio circle.
isRequired: The radio gets the required attribute when this is set to true.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command:
```
npx create-react-app foldername
```
Step 2: After creating your project folder i.e. foldername, move to it using the following command:
```
cd foldername
```
Step 3: After creating the ReactJS application, Install the required module using the following command:
```
npm install evergreen-ui
```

Project Structure: It will look like the following.

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React from 'react'
import { RadioGroup } from 'evergreen-ui'

export default function App() {

  const [ageGroup, setAgeGroup] = React.useState('0-10 years')

  return (
    <div style={{
      display: 'block', width: 700, paddingLeft: 30
    }}>
      <h4>ReactJS Evergreen Radio Component</h4>
      <RadioGroup
        label="Please select your Age group"
        value={ageGroup}
        options={[
          { label: '0-10 years', value: '0-10 years' },
          { label: '10-20 years', value: '0-10 years' },
          { label: '20-40 years', value: '0-10 years' },
          { label: '40-60 years', value: '40-60 years' },
          { label: 'Above 60 years', value: ' Above 60 years' },
        ]}
        onChange={e => setAgeGroup(e.target.value)}
      />
    </div>
  );
}