Fixed Options in Searchbox in ReactJS

Fixed options mean putting our defined options in the searchbox in ReactJS. Fixed options can not be altered in the search bar. Material UI for React has this component available for us and it is very easy to integrate. We can put fixed options in the search box in ReactJS using the following approach.

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 material-ui modules using the following command:

npm install @material-ui/core
npm install @material-ui/lab

Project Structure: It will look like the following.

Project Structure

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

Javascript

import React from 'react'
import TextField from '@material-ui/core/TextField';
import Chip from '@material-ui/core/Chip';
import Autocomplete from '@material-ui/lab/Autocomplete';

const App = () => {

  // Fixed Options to show
  const fixedOption = ['Gourav']

  // Sample options for search box
  const myOptions = [
    'Gourav', 'Niharika', 'kartik',
    'Madhuri', 'Karishma', 'Dinesh'
  ];

  const [value, setValue] = React.useState(fixedOption);

  return (
    <div style={{ marginLeft: '40%', marginTop: '60px' }}>
      <h3>Greetings from GeeksforGeeks!</h3>
      <Autocomplete
        multiple
        id="fixed-tags-demo"
        value={value}
        onChange={(event, newValue) => {
          setValue([
            ...fixedOption,
            ...newValue.filter((option) => fixedOption.indexOf(option) === -1),
          ]);
        }}
        options={myOptions}
        getOptionLabel={(option) => option}
        renderTags={(tagValue, getTagProps) =>
          tagValue.map((option, index) => (
            <Chip
              label={option}
              {...getTagProps({ index })}
              disabled={fixedOption.indexOf(option) !== -1}
            />
          ))
        }
        style={{ width: 450 }}
        renderInput={(params) => (
          <TextField {...params}
            label="Fixed Option Demo"
            variant="outlined"
            placeholder="Enter Option" />
        )}
      />
    </div>
  );
}

export default App

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:

As you can see now in the above searchbox, our fixed options array is already fixed in the search bar, so this is how we can put already fixed tags in ReactJS.