Learn BOOTSTRAP with Real Code Examples

Include via CDN (CSS + JS)

Install via npm: `npm install bootstrap`

Include in Sass build for custom variables

Use with bundlers like Webpack/Vite

Optional: include Popper.js for tooltips/popovers

Include Bootstrap CSS/JS via CDN

Install via npm for project build

Configure Sass for theme overrides

Add required JS plugins

Test responsiveness across devices

package.json - npm setup

scss/_variables.scss - theme customization

webpack.config.js - bundling

index.html - entry point

custom.js - optional JS plugin initialization

npm install bootstrap - install framework

npm run build - compile Sass

npm start - run development server

npx gulp - custom builds (optional)

Use bundlers to include only required parts

Bootstrap itself is language-agnostic

Text content handled via templates

Plugins and components can include i18n text

Forms and alerts can be localized

Integrates with front-end i18n libraries

ARIA attributes supported in components

Keyboard navigation for dropdowns, modals

Screen-reader friendly components

Focus management in JS plugins

Semantic HTML recommended

CSS classes for layout and components

Utility classes for spacing, colors, typography

Responsive breakpoints

Sass variables for theme customization

JavaScript plugins for dynamic behavior

Bootstrap itself does not handle state

Use JS or frameworks (React, Vue, Angular) for state

Plugins respond to DOM events

Form validation via JS

Dropdowns, modals, tooltips use internal state

No built-in data handling

Bind JS logic separately

Form validation via Bootstrap JS

Use custom JS for dynamic content

Integrates with front-end frameworks for data