Why React-bootstrap?

React-Bootstrap is a complete re-implementation of the Bootstrap components using React. It has no dependency on either bootstrap.js or jQuery. If you have React setup and React-Bootstrap installed, you have everything you need.

Methods and events using jQuery is done imperatively by directly manipulating the DOM. In contrast, React uses updates to the state to update the virtual DOM. In this way, React-Bootstrap provides a more reliable solution by incorporating Bootstrap functionality into React’s virtual DOM. Below are a few examples of how React-Bootstrap components differ from Bootstrap.

A Simple React Component

The CSS and details of Bootstrap components are rather opinionated and lengthy. React-Bootstrap simplifies this by condensing the original Bootstrap into React-styled components.

Bootstrap

import React from 'react';

function Example()  {
  return (
    <div class="alert alert-danger alert-dismissible fade show" role="alert">
      <strong>Oh snap! You got an error!</strong> 
      <p> 
        Change this and that and try again.
      </p>
      <button type="button" class="close" data-dismiss="alert" aria-label="Close">
        <span aria-hidden="true">&times;</span>
      </button>
    </div>
  )
}

React-Bootstrap

import React, { Component } from 'react';
import Alert from 'react-bootstrap/Alert';

function Example() {
  return (
    <Alert dismissible variant="danger">
      <Alert.Heading>Oh snap! You got an error!</Alert.Heading>
      <p>
        Change this and that and try again.
      </p>
    </Alert>
  )
}

Bootstrap with state

Since React-Bootstrap is built with React Javascript, state can be passed within React-Bootstrap components as a prop. It also makes it easier to manage the state as updates are made using React’s state instead of directly manipulating the state of the DOM. This also gives a lot of flexibility when creating more complex components.

React-bootstrap

function AlertDismissible() {
  const [show, setShow] = useState(true);

  return (
    <>
      <Alert show={show} variant="success">
        <Alert.Heading>How's it going?!</Alert.Heading>
        <p>
          Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget
          lacinia odio sem nec elit. Cras mattis consectetur purus sit amet
          fermentum.
        </p>
        <hr />
        <div className="d-flex justify-content-end">
          <Button onClick={() => setShow(false)} variant="outline-success">
            Close me ya'll!
          </Button>
        </div>
      </Alert>

      {!show && <Button onClick={() => setShow(true)}>Show Alert</Button>}
    </>
  );
}

render(<AlertDismissible />);

Bootstrap

// HTML
<div class="alert alert-success alert-dismissible fade show firstCollapsible" role="alert">
  <strong>How's it going?!</strong> 
  <p> 
    Duis mollis, est non commodo luctus, nisi erat porttitor ligula,
    eget lacinia odio sem nec elit. Cras mattis consectetur purus sit
    amet fermentum.
  </p>
  <hr/>
  <div class="d-flex justify-content-end">
    <button type="button" class="btn btn-outline-success">Close me ya'll!</button>
  </div>
</div>
<div class="d-flex justify-content-start alert fade show">
    <button type="button" class="btn btn-primary d-none secondCollapsible">Show Alert</button>
</div>

// Javascript
$('.btn-outline-success').on('click', function(e) {
    $('.firstCollapsible').addClass('d-none');
    $('.secondCollapsible').removeClass('d-none');
})

$('.btn-primary').on('click', function(e) {
    $('.firstCollapsible').removeClass('d-none');
    $('.secondCollapsible').addClass('d-none');
})

#bootstrap #react-js #web-development #javascript