ReactJS Evergreen Combobox Component

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. Combobox Component allows the user to select an option from a predefined list of options. We can use the following approach in ReactJS to use the Combobox Button Component.

Combobox Props:

• item: It is used to denote the options to show in the menu.
• selectedItem: It is used to denote the selected item when controlled.
• onChange: It is a function that is called when value changes.
• openOnFocus: It is used to open the autocomplete on focus when this is set to true.
• initialSelectedItem: It is used to denote the default selected item when uncontrolled.
• placeholder: It is used to denote the placeholder text.
• itemToString: It is a function that is used on each item to return the string that will be shown on the filter in case the array of items is not an array of strings.
• inputProps: It is used to denote the properties forwarded to the input.
• buttonProps: It is used to denote the properties forwarded to the button.
• autocompleteProps: It is used to denote the properties forwarded to the autocomplete component.
• disabled: It is used to make the input element disabled.
• isLoading: It is used to show a loading spinner when this is set to true.
• size: It is used to denote the size of the component.

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.

Project Structure

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 { Combobox } from 'evergreen-ui'

export default function App() {
  return (
    <div style={{
      display: 'block', width: 700, paddingLeft: 30
    }}>
      <h4>ReactJS Evergreen Combobox Component</h4>
      <Combobox
        placeholder="Select Week Days"
        items={['Monday', 'Tuesday', 'Wednesday', 'Thursday',
         'Friday', 'Saturday', 'Sunday']}
        autocompleteProps={{
          title: 'Weekdays'
        }}
      />
    </div>
  );
}

Step to Run Application: Run the application using the following command from the root directory of the project:

npm start

Output: Now open your browser and go to http://localhost:3000/, you will see the following output:

Reference: https://evergreen.segment.com/components/combobox