Bootstrap with React (react-bootstrap) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Button component from react-bootstrap.

Bootsrap

import { [1] } from 'react-bootstrap';

Drag options to blanks, or click blank then click option'

ARow

BButton

CCol

DContainer

Attempts:

3 left

💡 Hint

Common Mistakes

Importing a layout component like Container instead of Button.

Forgetting to use curly braces around the component name.

The Button component is imported from react-bootstrap to use Bootstrap styled buttons in React.

2fill in blank

medium

Complete the code to render a primary Bootstrap button with the text 'Click me'.

Bootsrap

<Button variant=[1]>Click me</Button>

Drag options to blanks, or click blank then click option'

A"danger"

B"success"

C"primary"

D"warning"

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variant that does not match the intended style.

Forgetting to put quotes around the variant value.

The variant prop controls the button style. "primary" gives the main blue Bootstrap style.

3fill in blank

hard

Fix the error in the code to correctly import and use the Container component from react-bootstrap.

Bootsrap

import Container from 'react-bootstrap/[1]';

function App() {
  return <Container>Content here</Container>;
}

Drag options to blanks, or click blank then click option'

Acontainer

Bgrid

Clayout

DContainer

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'container' which causes module not found error.

Importing from a wrong folder like 'layout' or 'grid'.

The correct import path for the Container component is 'react-bootstrap/Container' with a capital C.

4fill in blank

hard

Fill both blanks to create a responsive grid with two columns using react-bootstrap.

Bootsrap

<Container>
  <Row>
    <Col [1]>Column 1</Col>
    <Col [2]>Column 2</Col>
  </Row>
</Container>

Drag options to blanks, or click blank then click option'

Amd={6}

Bsm={12}

Clg={4}

Dxs={6}

Attempts:

3 left

💡 Hint

Common Mistakes

Using different sizes for each column causing uneven layout.

Using sizes that don't add up to 12 or don't create two equal columns.

Using md={6} on both columns splits the row into two equal halves on medium and larger screens.

5fill in blank

hard

Fill all three blanks to create a Navbar with a brand name and a toggle button using react-bootstrap.

Bootsrap

import { Navbar, [1], [2] } from 'react-bootstrap';

function MyNavbar() {
  return (
    <Navbar bg="light" expand="lg">
      <Navbar.Brand href="#home">MySite</Navbar.Brand>
      <Navbar.[3] aria-controls="basic-navbar-nav" />
    </Navbar>
  );
}

Drag options to blanks, or click blank then click option'

ANav

BNavDropdown

CToggle

DNavbarToggleButton

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong component names for toggle button.

Forgetting to import Nav or NavDropdown for navigation links.

The Nav and NavDropdown components are imported for navigation links, and Navbar.Toggle is used as the toggle button.

Practice

1. What is the main purpose of using react-bootstrap in a React project?

easy

A. To use Bootstrap styles as React components for easier UI building

B. To replace React with Bootstrap framework

C. To write CSS styles manually without any components

D. To convert React code into plain HTML automatically

Solution

1. Step 1: Understand what react-bootstrap provides

   React-Bootstrap offers Bootstrap styles wrapped as React components, making UI building easier.

2. Step 2: Compare options with this understanding

   Only To use Bootstrap styles as React components for easier UI building correctly describes this purpose; others are incorrect or unrelated.

3. Final Answer:

   To use Bootstrap styles as React components for easier UI building -> Option A

4. Quick Check:

   React-Bootstrap = Bootstrap components in React [OK]

Hint: React-Bootstrap = Bootstrap + React components [OK]

Common Mistakes:

• Thinking react-bootstrap replaces React
• Assuming it removes the need for CSS
• Confusing it with plain Bootstrap usage

2. Which is the correct way to import the Button component from react-bootstrap?

easy

A. import Button from 'react-bootstrap/Button';

B. import Button from 'react-bootstrap-button';

C. import { Button } from 'react-bootstrap';

D. import { Button } from 'bootstrap-react';

Solution

1. Step 1: Recall react-bootstrap import syntax

   React-Bootstrap components are imported using named imports from 'react-bootstrap'.

2. Step 2: Check each option

   import { Button } from 'react-bootstrap'; uses correct named import syntax. import Button from 'react-bootstrap/Button'; is incorrect because react-bootstrap does not export components from separate paths. Options B and C use wrong package names.

3. Final Answer:

   import { Button } from 'react-bootstrap'; -> Option C

4. Quick Check:

   Named import from 'react-bootstrap' = correct [OK]

Hint: Use named imports from 'react-bootstrap' package [OK]

Common Mistakes:

• Using default import instead of named import
• Importing from wrong package names
• Trying to import from sub-paths

3. What will be rendered by this React-Bootstrap code?

import React from 'react';
import { Button } from 'react-bootstrap';

export default function App() {
  return <Button variant="success">Save</Button>;
}

medium

A. A button with no color labeled 'Save'

B. A blue button labeled 'Save'

C. A red button labeled 'Save'

D. A green button labeled 'Save'

Solution

1. Step 1: Understand the Button variant prop

   The variant="success" in react-bootstrap Button applies Bootstrap's green success style.

2. Step 2: Determine the button appearance

   The button will appear green with the label 'Save' as text inside.

3. Final Answer:

   A green button labeled 'Save' -> Option D

4. Quick Check:

   variant="success" = green button [OK]

Hint: variant="success" means green button in Bootstrap [OK]

Common Mistakes:

• Confusing variant colors
• Expecting default blue color with variant="success"
• Ignoring the variant prop effect

4. Identify the error in this React-Bootstrap code snippet:

import React from 'react';
import { Button } from 'react-bootstrap';

function MyButton() {
  return <Button variant="primary">Click Me</Button>
}

export default MyButton;

medium

A. Component name should start with lowercase letter

B. No error; code is correct

C. Missing parentheses around JSX in return

D. Missing semicolon after return statement

Solution

1. Step 1: Check JSX return syntax

   JSX can be returned without parentheses if it is a single expression on the same line.

2. Step 2: Validate component naming and imports

   Component name starts with uppercase 'MyButton' which is correct. Import and usage of Button is correct.

3. Final Answer:

   No error; code is correct -> Option B

4. Quick Check:

   JSX return without parentheses is valid [OK]

Hint: JSX can return single element without parentheses [OK]

Common Mistakes:

• Thinking semicolon is mandatory after return
• Assuming lowercase component names are valid
• Expecting parentheses always around JSX

5. You want to create a responsive navigation bar using React-Bootstrap that collapses on small screens. Which components should you combine to achieve this?

hard

A. Navbar, Nav, and Container components with collapseOnSelect prop

B. Button and Form components only

C. Card and Alert components with responsive prop

D. Table and Modal components with collapse prop

Solution

1. Step 1: Identify components for responsive navbar

   React-Bootstrap uses Navbar for the main bar, Nav for links, and Container for layout. The collapseOnSelect prop helps with collapsing behavior.

2. Step 2: Eliminate unrelated components

   Button, Form, Card, Alert, Table, Modal do not create responsive navbars or handle collapsing.

3. Final Answer:

   Navbar, Nav, and Container components with collapseOnSelect prop -> Option A

4. Quick Check:

   Navbar + Nav + Container = responsive navbar [OK]

Hint: Use Navbar + Nav + Container for responsive navbars [OK]

Common Mistakes:

• Using unrelated components for navbar
• Forgetting to include Nav inside Navbar
• Not using collapseOnSelect or responsive props