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Web APIs – JavaScript Tutorials

Web APIs are sets of functionalities provided by web browsers that can be accessed using JavaScript code to interact with web pages and perform various actions. These APIs enable developers to add dynamic features to their web applications.

Some common JavaScript Web APIs are:

  • Fetch API: This provides a way to make network requests and handle responses using promises
  • Canvas API: This allows you to draw graphics on a web page using an <canvas> element
  • Geolocation API: This enables you to get the user’s current location using GPS or other methods
  • Service Workers API: This enables you to run background scripts that can intercept network requests, cache resources, and perform other tasks even when the web page is not open

There are many more JavaScript Web APIs available for different purposes. We will explore the most important and widely used ones in this series of tutorials.

1 CacheStorage in JavaScript: A Practical Guide (with Examples)

2 Using IndexedDB with JavaScript: CRUD Example

3 Enhancing User Engagement with the JavaScript Badging API

4 Updating App Icons Dynamically with the Badging API in JavaScript

5 Contextual Notifications: Using the Badging API for Unread Counts

6 Implementing Low-Impact Alerts via the JavaScript Badging API

7 Improving UX by Setting App Badge Counters in JavaScript

8 Passing Small Amounts of Data Reliably with the JavaScript Beacon API

9 Sending Analytics Pings in the Background Using JavaScript Beacon

10 Ensuring Data Persistence with Beacon Requests Before Unload Events

11 Improving User Privacy by Efficiently Transmitting Data with Beacon

12 Minimizing Performance Impact Using Beacon for Telemetry in JavaScript

13 Synchronizing Offline Data Using Background Sync in JavaScript

14 Keeping Your App Updated During Network Downtime with Background Sync

15 Improving Reliability of Content Updates with the Background Sync API

16 Scheduling Deferred Network Operations Using JavaScript Background Sync

17 Combining Background Sync and Service Workers for Offline-First Apps

18 Real-Time Collaboration with Broadcast Channel API in JavaScript

19 Sharing State Between Tabs Using the Broadcast Channel API

20 Coordinating Multiple Windows and Iframes via the Broadcast Channel

21 Securely Messaging Between Different Parts of Your App Using Broadcast Channel

22 Decoupling Application Components Using Broadcast Channel Messaging

23 Monitoring Device Power Levels with the JavaScript Battery API

24 Adjusting App Features Based on Battery Levels Using the Battery API

25 Preserving User Experience by Detecting Low Battery in JavaScript

26 Dynamic UI Adjustments for Energy Saving with the Battery API

27 Creating Power-Aware Web Apps Using the Battery API in JavaScript

28 Scheduling Non-Critical Tasks with JavaScript Background Tasks

29 Running Maintenance Routines Using Background Tasks in the Browser

30 Deferring Resource-Intensive Operations via the Background Tasks API

31 Enhancing Performance by Offloading Work to Background Tasks

32 Building Efficient, Non-Blocking Data Pipelines with Background Tasks

33 Combining the Badging API with Notifications for Better User Engagement

34 Using Beacon for Send-At-Last-Moment Data Like Form Drafts

35 Background Sync for Reliable Offline-to-Online Data Synchronization

36 Broadcasting Changes in App State to Multiple Tabs Simultaneously

37 Battery-Aware Gaming: Adapting Gameplay Based on Device Charge

38 Integrating Battery API Feedback to Suggest Energy Saving Tips

39 Background Tasks for On-Demand Content Preloading

40 Utilizing Broadcast Channel for Cross-Tab Communication in PWAs

41 Enhancing Analytics Collection with Beacon During Page Unload

42 Orchestrating a Polyglot Web App with Combined Background APIs

43 Highlight Text Selections with the CSS Custom Highlight API in JavaScript

44 Define Custom Highlights with the CSS Custom Highlight API in JavaScript

45 Interactive Annotations Using the CSS Custom Highlight API in JavaScript

46 Customize Underlines and Colors via the CSS Custom Highlight API in JavaScript

47 Add Contextual Emphasis with the CSS Custom Highlight API in JavaScript

48 Optimize Web Typography Using the CSS Font Loading API in JavaScript

49 Dynamic Font Loading via the CSS Font Loading API in JavaScript

50 Monitor Font Performance with the CSS Font Loading API in JavaScript

51 Preload Fonts Using the CSS Font Loading API in JavaScript

52 Control Font Fallbacks with the CSS Font Loading API in JavaScript

53 Register Custom CSS Properties with the Properties and Values API in JavaScript

54 Type-Safe CSS Properties Using the Properties and Values API in JavaScript

55 Themeable Styles via the CSS Properties and Values API in JavaScript

56 Validate Property Inputs with the CSS Properties and Values API in JavaScript

57 Refine Inheritance Using the CSS Properties and Values API in JavaScript

58 Use Typed CSS Values with the CSS Typed OM in JavaScript

59 Bridge CSS and JavaScript via the CSS Typed OM

60 Perform Unit Conversions Using the CSS Typed OM in JavaScript

61 Skip String Parsing with the CSS Typed OM in JavaScript

62 Streamline Layout Calculations Using the CSS Typed OM in JavaScript

63 Programmatic Style Access with the CSSOM in JavaScript

64 Modify CSS Rules On-the-Fly via the CSSOM in JavaScript

65 Minimize Recalculations Using the CSSOM in JavaScript

66 Inject and Remove Styles Dynamically with the CSSOM in JavaScript

67 Access Computed Styles Using the CSSOM in JavaScript

68 Draw and Animate Using the Canvas API in JavaScript

69 Create Interactive Charts with the Canvas API in JavaScript

70 Optimize Image Processing via Canvas Pixel Data in JavaScript

71 Improve Performance with OffscreenCanvas in JavaScript

72 Build Simple Games Using the Canvas API in JavaScript

73 Cross-Document Communication with the Channel Messaging API in JavaScript

74 Sync State Across Tabs via Channel Messaging in JavaScript

75 Exchange Data Between Iframes Using Channel Messaging in JavaScript

76 Collaborate Across Windows with the Channel Messaging API in JavaScript

77 Coordinate Workers Using Channel Messaging in JavaScript

78 Copy and Paste Using the Clipboard API in JavaScript

79 Secure Clipboard Access in JavaScript

80 Enhance UX with Clipboard Integration in JavaScript

81 Monitor Clipboard Changes in Real-Time Using JavaScript

82 Automate Clipboard Actions via JavaScript

83 Optimize Data Transfer with Compression Streams in JavaScript

84 Apply Gzip Compression Using the Compression Streams API in JavaScript

85 Reduce Payload Size with Compression Streams in JavaScript

86 Combine Fetch and Compression in JavaScript

87 Transform Large Files Using Compression Streams in JavaScript

88 Debug Applications with the Console API in JavaScript

89 Use Advanced Console Features in JavaScript

90 Customize Logging Workflows via the Console API in JavaScript

91 Filter and Organize Console Output with JavaScript

92 Leverage Console Warnings and Errors in JavaScript

93 Manage Cookies Using the Cookie Store API in JavaScript

94 Track Cookie Changes in Real-Time with JavaScript

95 Sync Client-Side State Using the Cookie Store API in JavaScript

96 Enhance Security with the Cookie Store API in JavaScript

97 Avoid Document.cookie Using the Cookie Store API in JavaScript

98 Streamline Sign-In with the Credential Management API in JavaScript

99 Store and Retrieve Credentials Securely in JavaScript

100 Use Password Managers via the Credential Management API in JavaScript

101 Enable Auto-Login with Credential Management in JavaScript

102 Improve Authentication UX with Credentials in JavaScript

103 Check Device Memory with the JavaScript Device Memory API

104 Adapt Features Based on Hardware via the JavaScript Device Memory API

105 Optimize Performance Using the JavaScript Device Memory API

106 Detect Low-Memory Devices with the JavaScript Device Memory API

107 Tailor Content Quality Using the JavaScript Device Memory API

108 Access Device Orientation Events in JavaScript

109 Track Device Rotation Angles in JavaScript

110 Create Immersive UIs with Device Orientation in JavaScript

111 Responsive Layouts Based on Device Orientation in JavaScript

112 Combine Motion and Orientation Events for Interactivity in JavaScript

113 Encode and Decode Text Using the Encoding API in JavaScript

114 Handle Various Character Encodings Efficiently in JavaScript

115 Convert Strings with the Encoding API in JavaScript

116 Automate Text Transcoding Using JavaScript Encoding

117 Improve Internationalization with the Encoding API in JavaScript

118 Securely Stream DRM Content with Encrypted Media Extensions in JavaScript

119 Manage Protected Video Playback in JavaScript Using EME

120 Integrate DRM Solutions via Encrypted Media Extensions in JavaScript

121 Deliver Premium Content Safely with JavaScript EME

122 Handle License Requests Through Encrypted Media Extensions in JavaScript

123 Read Local Files Using the File API in JavaScript

124 Extract File Metadata in JavaScript

125 Preview Uploaded Files Before Submission in JavaScript

126 Process Text and Binary Data Using the File API in JavaScript

127 Enhance User File Interactions with the File API in JavaScript

128 Access Local Storage Using the File System API in JavaScript

129 Create and Modify Files Programmatically in JavaScript

130 Manage Directories and Paths with the JavaScript File System API

131 Implement Persistent Data Storage via the File System API in JavaScript

132 Build Offline-Ready Apps Using the JavaScript File System API

133 Browse User Files with the File and Directory Entries API in JavaScript

134 Traverse Folders and Retrieve Entries in JavaScript

135 Bulk File Management Using the File and Directory Entries API in JavaScript

136 Enhance File Uploads with Directory Selections in JavaScript

137 Organize Files and Folders with the JavaScript File and Directory Entries API

138 Enter and Exit Fullscreen Mode Using the Fullscreen API in JavaScript

139 Optimize Media Viewing with JavaScript Fullscreen Control

140 Build Immersive Experiences Using the JavaScript Fullscreen API

141 Detect Fullscreen Changes in Real-Time with JavaScript

142 Improve User Focus via the Fullscreen API in JavaScript

143 Fetch Data from APIs Using JavaScript fetch()

144 Handle JSON Responses with the JavaScript fetch API

145 Manage HTTP Errors Gracefully in JavaScript fetch Requests

146 Use async/await with the JavaScript fetch API

147 Combine fetch with Other Web APIs in JavaScript

148 Optimize Network Calls Using the JavaScript fetch API

149 Implement Caching Strategies with JavaScript fetch

150 Control Request Headers and Options in JavaScript fetch

151 Parse and Stream Responses Using JavaScript fetch

152 Upload Files via the JavaScript fetch API

153 Control Game Controllers with the Gamepad API in JavaScript

154 Detect Button Presses and Joysticks via the Gamepad API in JavaScript

155 Build Responsive Game Controls Using JavaScript and the Gamepad API

156 Map Custom Input Schemes with the JavaScript Gamepad API

157 Combine Gamepad Events and Rendering Loops in JavaScript

158 Get User Location with the Geolocation API in JavaScript

159 Track Movement in Real Time Using JavaScript Geolocation

160 Provide Location-Based Features with the JavaScript Geolocation API

161 Calculate Distances and Routes in JavaScript via Geolocation

162 Enhance Personalized Content Using the Geolocation API in JavaScript

163 Measure and Manipulate Shapes Using Geometry Interfaces in JavaScript

164 Calculate Distances and Intersections with Geometry Interfaces in JavaScript

165 Simplify Complex Geometric Tasks Using JavaScript Geometry Interfaces

166 Integrate Geometry-Based Animations with JavaScript

167 Optimize Layouts and Designs Using Geometry Data in JavaScript

168 Navigate Through Browser History with the History API in JavaScript

169 Implement Custom Back and Forward Controls Using JavaScript History

170 Create Bookmark-Friendly Single-Page Apps Using the History API in JavaScript

171 Sync State to the URL with the JavaScript History API

172 Improve App Navigation and SEO with JavaScript History Management

173 Extend CSS and Layout Capabilities with the Houdini API in JavaScript

174 Define Custom CSS Properties Using the Houdini API in JavaScript

175 Build Advanced Layout and Paint Worklets via JavaScript Houdini

176 Improve Performance and Styling Flexibility with JavaScript Houdini

177 Enhance Visual Effects with the Houdini API in JavaScript

178 Insert Custom Media Processing Using Insertable Streams in JavaScript

179 Transform Tracks on the Fly with Insertable Streams for MediaStreamTrack in JavaScript

180 Apply Filters and Encryption Using JavaScript Insertable Streams

181 Add Effects to Live Video Streams with JavaScript Insertable Streams

182 Customize Media Pipelines Dynamically Using Insertable Streams in JavaScript

183 Observe Element Visibility with the Intersection Observer API in JavaScript

184 Lazy-Load Images and Videos Using the JavaScript Intersection Observer

185 Trigger Animations When Elements Enter Viewport in JavaScript

186 Improve Performance and UX with Intersection Observer in JavaScript

187 Simplify Infinite Scrolling Using the Intersection Observer API in JavaScript

188 Optimize Playback with the Media Capabilities API in JavaScript

189 Check Decoder Support and Performance Using JavaScript Media Capabilities

190 Tailor Media Experience to Device Abilities via JavaScript Media Capabilities

191 Reduce Playback Issues with JavaScript Media Capabilities Detection

192 Enhance Adaptive Streaming Using the Media Capabilities API in JavaScript

193 Access Camera and Microphone Using Media Capture and Streams in JavaScript

194 Record User Media Directly in the Browser with JavaScript Media Capture

195 Build Video Chat and Conferencing Apps via JavaScript Media Streams

196 Combine Media Streams with Canvas for Visual Effects in JavaScript

197 Integrate Real-Time AV Capture into Web Apps with JavaScript

198 Control Playback UI with the Media Session API in JavaScript

199 Define Custom Media Controls Using the JavaScript Media Session API

200 Improve Audio/Video Navigation with the Media Session API in JavaScript

201 Show Track Info on Lock Screens via JavaScript Media Session

202 Enable Voice Control of Playback Using the Media Session API in JavaScript

203 Record User Audio/Video Using MediaStream Recording in JavaScript

204 Capture Moments and Export Media with JavaScript Recording

205 Generate WebM or MP4 Files from Live Streams in JavaScript

206 Integrate Recording Controls into Your UI via JavaScript

207 Combine Media Capture and Recording for Offline Storage in JavaScript

208 Check Connection Quality Using the Network Information API in JavaScript

209 Adapt Content Loading Based on Network Speed in JavaScript

210 Optimize Resource Fetching for Slow Connections via JavaScript Network Information

211 Provide Data Saver Modes Using the Network Information API in JavaScript

212 Improve App Responsiveness with JavaScript Network Information

213 Detect Page Visibility Changes with the Page Visibility API in JavaScript

214 Run Tasks Only When Visible Using the Page Visibility API in JavaScript

215 Pause Animations on Hidden Tabs via JavaScript Page Visibility

216 Optimize Performance by Checking Page Visibility in JavaScript

217 Improve User Experience with JavaScript Page Visibility Checks

218 Process Payments Easily with the Payment Request API in JavaScript

219 Streamline Checkout Flows Using the JavaScript Payment Request API

220 Reduce Cart Abandonment via the Payment Request API in JavaScript

221 Integrate Multiple Payment Methods Using JavaScript Payment Requests

222 Enhance Security and Trust Using the Payment Request API in JavaScript

223 Measure Performance Metrics with the Performance API in JavaScript

224 Analyze Load Times Using the JavaScript Performance API

225 Identify Bottlenecks with JavaScript Performance Timing Data

226 Optimize Rendering Using the Performance API in JavaScript

227 Improve User Experience Through Performance Metrics in JavaScript

228 Check User Permissions Using the Permissions API in JavaScript

229 Request Access to Camera, Mic, and More via JavaScript Permissions

230 Handle Denials Gracefully with the Permissions API in JavaScript

231 Update UI Based on Granted Permissions in JavaScript

232 Enhance Security by Managing Permissions with JavaScript

233 Enable Picture-in-Picture Playback with the API in JavaScript

234 Float Videos Above Other Content via JavaScript Picture-in-Picture

235 Improve Multitasking Using the Picture-in-Picture API in JavaScript

236 Control Video Position and Size with Picture-in-Picture in JavaScript

237 Increase Engagement Using JavaScript Picture-in-Picture Mode

238 Handle Pointer Inputs with Pointer Events in JavaScript

239 Track Mouse, Touch, and Pen Inputs via JavaScript Pointer Events

240 Build Unified Input Handlers Using Pointer Events in JavaScript

241 Improve Accessibility with Pointer Events in JavaScript

242 Create Smooth Interactions Using the Pointer Events API in JavaScript

243 Lock the Pointer for Immersive Experiences Using the Pointer Lock API in JavaScript

244 Create 3D Navigations and Games with JavaScript Pointer Lock

245 Hide the Cursor and Capture Movement via Pointer Lock in JavaScript

246 Implement First-Person Camera Controls Using JavaScript Pointer Lock

247 Enhance Simulations with Full Mouse Control in JavaScript

248 Show Contextual Overlays Using the Popover API in JavaScript

249 Attach Info Popups Dynamically with JavaScript Popovers

250 Simplify Tooltip and Dropdown Creation via JavaScript Popover API

251 Enhance User Guidance Using the Popover API in JavaScript

252 Control Placement and Timing of Overlays in JavaScript

253 Prioritize Tasks for Better Performance Using the Prioritized Task Scheduling API in JavaScript

254 Run Critical Code First via Prioritized Scheduling in JavaScript

255 Balance CPU Load with the Prioritized Task Scheduling API in JavaScript

256 Improve Responsiveness by Queuing Tasks in JavaScript

257 Optimize Heavier Processes with JavaScript Task Prioritization

258 Send Push Notifications with the Push API in JavaScript

259 Keep Users Engaged Using JavaScript Push Messages

260 Notify Users Even When Offline via Push API in JavaScript

261 Combine Push and Service Workers for Re-Engagement in JavaScript

262 Update Content Proactively with the JavaScript Push API

263 Stream Media to Remote Devices Using the Remote Playback API in JavaScript

264 Connect to Smart TVs and Speakers via JavaScript Remote Playback

265 Control External Screens from Web Apps with the Remote Playback API in JavaScript

266 Allow Seamless Device Switching Using JavaScript Remote Playback

267 Enhance Media Experiences with JavaScript Remote Playback Integration

268 Observe Element Resizes with the Resize Observer API in JavaScript

269 Adapt Layout Dynamically Using JavaScript Resize Observers

270 Optimize Responsive Designs via the Resize Observer API in JavaScript

271 Reduce Layout Thrashing by Watching Size Changes in JavaScript

272 Trigger UI Adjustments Automatically with JavaScript Resize Observer

273 Manipulate SVG Elements Dynamically in JavaScript

274 Create Scalable Graphics Using JavaScript and SVG

275 Animate Vector Images via JavaScript SVG APIs

276 Respond to User Input with Interactive JavaScript SVG

277 Optimize Icon Sets and Diagrams Using SVG in JavaScript

278 Capture Screens and Windows Using the Screen Capture API in JavaScript

279 Record or Broadcast Your Display with JavaScript Screen Capture

280 Implement Screen Sharing Tools via the Screen Capture API in JavaScript

281 Enable Remote Demos and Presentations Using JavaScript Screen Capture

282 Combine Screen Capture and Streaming in JavaScript

283 Manage Orientation Changes with the Screen Orientation API in JavaScript

284 Detect Portrait or Landscape Mode Using JavaScript Orientation

285 Lock Screen Orientation for Specific Layouts in JavaScript

286 Enhance Mobile UIs by Checking Orientation in JavaScript

287 Adjust UI Based on Orientation Changes via JavaScript

288 Prevent Screen Sleep with the Screen Wake Lock API in JavaScript

289 Keep Critical Info Visible Using JavaScript Wake Locks

290 Improve User Focus by Stopping Screen Dimming in JavaScript

291 Enhance Long-Reading or Monitoring Sessions via JavaScript Wake Lock

292 Maintain Active Displays for Kiosks with the JavaScript Screen Wake Lock API

293 Select Text and Elements Using the Selection API in JavaScript

294 Highlight Custom Ranges with the JavaScript Selection API

295 Implement Custom Copy and Context Menus via JavaScript Selection

296 Track and Modify User Selections in JavaScript

297 Enhance Editing Features Using the Selection API in JavaScript

298 Read Device Data Using Various Sensors with the Sensor API in JavaScript

299 Access Accelerometers, Gyroscopes, and More via JavaScript Sensors

300 Create Motion-Based Interactions Using JavaScript Sensor Data

301 Combine Multiple Sensors for Advanced Features in JavaScript

302 Improve Real-World Interactions with Sensor Events in JavaScript

303 Receive Real-Time Updates via Server Sent Events in JavaScript

304 Stream Live Data Without Polling Using JavaScript SSE

305 Implement Chat, Stock Tickers, and More via JavaScript Server Sent Events

306 Reduce Network Load by Pushing Data to JavaScript Clients

307 Enhance Interactivity with Persistent Connections in JavaScript

308 Build Offline-Ready Apps Using Service Workers in JavaScript

309 Cache Resources and Speed Up Loads via JavaScript Service Workers

310 Implement Background Sync with Service Workers in JavaScript

311 Enable Push Notifications Through Service Workers in JavaScript

312 Improve Reliability and Resilience with JavaScript Service Workers

313 Store Data Client-Side Using JavaScript Storage APIs

314 Use localStorage and sessionStorage in JavaScript

315 Persist User Preferences and Sessions via JavaScript Storage

316 Manage Data Limits and Quotas in JavaScript Storage

317 Combine IndexedDB and Storage for Complex Apps in JavaScript

318 Control Cross-Site Access with the Storage Access API in JavaScript

319 Grant Temporary Access to Cookies Using JavaScript Storage Access

320 Improve Privacy and Security with the Storage Access API in JavaScript

321 Adapt Auth Flows by Checking Storage Permissions in JavaScript

322 Enhance Embedded Content Using JavaScript Storage Access

323 Stream Data Efficiently Using Streams in JavaScript

324 Process Large Files Gradually with JavaScript Streams

325 Build Pipelines for Transforming Data in JavaScript Streams

326 Combine Fetch and Streams for Efficient Networking in JavaScript

327 Control Backpressure and Flow with JavaScript Streams

328 Handle Touch Inputs Using Touch Events in JavaScript

329 Create Mobile-Friendly Interactions via JavaScript Touch Events

330 Detect Gestures and Swipes Using JavaScript Touch APIs

331 Enhance User Experience on Touch Devices with JavaScript

332 Combine Touch and Pointer Events for Universal Input in JavaScript

333 Enforce Safe DOM Interactions with the Trusted Types API in JavaScript

334 Prevent XSS Attacks Using JavaScript Trusted Types

335 Define and Validate Safe HTML Sources in JavaScript

336 Restrict Dangerous Content via the Trusted Types API in JavaScript

337 Improve Security Posture Using JavaScript Trusted Types

338 Respond to Keyboard, Mouse, and Other UI Events in JavaScript

339 Handle Form Submissions Using UI Events in JavaScript

340 Enhance Accessibility by Listening to UI Events in JavaScript

341 Improve Navigation with Keyboard Shortcuts via JavaScript UI Events

342 Combine UI Events for Rich Interactions in JavaScript

343 Parse and Manipulate URLs Using the URL API in JavaScript

344 Extract Query Parameters via JavaScript URL Objects

345 Update Browser State Without Reloading Using JavaScript URL

346 Resolve Relative Paths with the JavaScript URL API

347 Build Dynamic Links and Redirects in JavaScript

348 Enable Text Directives for Links Using URL Fragment Text Directives in JavaScript

349 Highlight Specific Text on a Page via JavaScript URL Fragments

350 Improve Deep Linking and Sharing Using JavaScript Fragment Directives

351 Guide Users to Relevant Content with JavaScript URL Text Fragments

352 Add Contextual Highlights with the JavaScript URL Fragment API

353 Make Devices Vibrate Using the Vibration API in JavaScript

354 Provide Haptic Feedback with JavaScript Vibration

355 Enhance Mobile Alerts Using the Vibration API in JavaScript

356 Create Subtle Interaction Cues via JavaScript Vibration Calls

357 Combine Sound and Vibration for Notifications in JavaScript

358 Transition Between Views Smoothly with the View Transitions API in JavaScript

359 Animate Page Changes Using JavaScript View Transitions

360 Reduce Jarring Layout Shifts with the View Transitions API in JavaScript

361 Enhance Single-Page Apps with JavaScript View Transitions

362 Guide Users Through Content Changes Smoothly via JavaScript

363 Adjust Layout Based on Visual Viewport in JavaScript

364 Handle Zoom and Scroll with the Visual Viewport API in JavaScript

365 Improve Mobile Layouts Using JavaScript Visual Viewport Metrics

366 Sync Content Position with Visual Viewport Changes in JavaScript

367 Enhance User Experience by Tracking Visual Viewport in JavaScript

368 Create Smooth Animations Using the Web Animations API in JavaScript

369 Control Keyframes and Timing with the Web Animations API in JavaScript

370 Chain Multiple Animations Easily via the Web Animations API in JavaScript

371 Enhance Visual Feedback Using the Web Animations API in JavaScript

372 Optimize Performance by Animating Directly in JavaScript via Web Animations

373 Generate Dynamic Audio with the Web Audio API in JavaScript

374 Process Sound Effects and Filters Using the Web Audio API in JavaScript

375 Build Interactive Music Tools via the Web Audio API in JavaScript

376 Visualize Audio Data in Real-Time with the Web Audio API in JavaScript

377 Create Spatial and 3D Audio Experiences Using JavaScript Web Audio

378 Authenticate Securely Using the Web Authentication API in JavaScript

379 Implement Passwordless Login via JavaScript Web Authentication

380 Enhance Security with Biometric Auth through the Web Authentication API in JavaScript

381 Handle Multi-Factor Authentication Using JavaScript WebAuthn

382 Improve User Trust with Cryptographic Sign-Ins in JavaScript

383 Build Custom Elements with Web Components in JavaScript

384 Encapsulate Styles and Logic Using JavaScript Web Components

385 Reuse UI Blocks Across Projects via JavaScript Web Components

386 Create Framework-Agnostic UI Using Web Components in JavaScript

387 Enhance Modularity and Maintainability with JavaScript Web Components

388 Encrypt and Decrypt Data Using the Web Crypto API in JavaScript

389 Generate and Manage Keys with the Web Crypto API in JavaScript

390 Ensure Secure Communications Using JavaScript Web Crypto

391 Sign and Verify Messages via the Web Crypto API in JavaScript

392 Implement Secure Hashing and Random Values in JavaScript Web Crypto

393 Acquire Exclusive Resources Using the Web Locks API in JavaScript

394 Prevent Race Conditions with the Web Locks API in JavaScript

395 Coordinate Concurrent Operations Using JavaScript Web Locks

396 Ensure Data Consistency via the Web Locks API in JavaScript

397 Manage Shared State Safely with the JavaScript Web Locks API

398 Access Musical Instruments and Controllers with the Web MIDI API in JavaScript

399 Send and Receive MIDI Messages Using JavaScript Web MIDI

400 Integrate Keyboards, Guitars, and Drums via the Web MIDI API in JavaScript

401 Create Interactive Music Apps Using JavaScript Web MIDI

402 Transform Real-Time MIDI Input into Sound in JavaScript

403 Show Desktop Notifications via Web Notifications in JavaScript

404 Alert Users to Important Events Using JavaScript Notifications

405 Customize Icons and Actions with the Web Notifications API in JavaScript

406 Keep Users Engaged via JavaScript Web Notifications

407 Notify Users Even When They’re on Other Tabs in JavaScript

408 Share Links and Files Using the Web Share API in JavaScript

409 Enable Native Share Dialogs via JavaScript Web Share

410 Simplify Social Sharing with the Web Share API in JavaScript

411 Integrate Seamless Content Sharing in JavaScript

412 Boost Engagement by Using Web Share in JavaScript

413 Recognize Speech with the Web Speech API in JavaScript

414 Convert Spoken Words to Text Using JavaScript Web Speech

415 Create Voice-Activated Interfaces via the Web Speech API in JavaScript

416 Generate Audio Feedback with Speech Synthesis in JavaScript

417 Enhance Accessibility with Voice Commands Using JavaScript Web Speech

418 Store Data Client-Side with the Web Storage API in JavaScript

419 Use localStorage and sessionStorage via JavaScript Web Storage

420 Persist User Preferences Using the Web Storage API in JavaScript

421 Limit Network Requests by Caching Data in JavaScript Web Storage

422 Maintain State Offline with the Web Storage API in JavaScript

423 Run Background Tasks with Web Workers in JavaScript

424 Offload CPU-Heavy Tasks Using JavaScript Web Workers

425 Improve Responsiveness by Parallelizing with Web Workers in JavaScript

426 Share Data Between Main Thread and Workers via JavaScript

427 Build Faster Apps with Multithreading Using JavaScript Web Workers

428 Decode and Encode Video with the WebCodecs API in JavaScript

429 Handle Media Streams Efficiently Using JavaScript WebCodecs

430 Improve Video Playback Performance via WebCodecs in JavaScript

431 Process Video Frames and Transforms Using JavaScript WebCodecs

432 Integrate Real-Time Video Editing with the WebCodecs API in JavaScript

433 Render 3D Graphics Using WebGL in JavaScript

434 Create Interactive 3D Scenes with WebGL and JavaScript

435 Load and Animate Models via JavaScript WebGL

436 Combine Shaders and Textures in JavaScript WebGL

437 Build VR and AR Experiences with JavaScript WebGL

438 Receive One-Time Passwords with the WebOTP API in JavaScript

439 Auto-Fill Verification Codes Using JavaScript WebOTP

440 Streamline Login Flows via the WebOTP API in JavaScript

441 Enhance Security and UX with JavaScript WebOTP

442 Eliminate Manual Code Entry Using the WebOTP API in JavaScript

443 Communicate in Real-Time with WebRTC in JavaScript

444 Set Up Peer-to-Peer Connections Using JavaScript WebRTC

445 Stream Audio and Video Directly via WebRTC in JavaScript

446 Build Video Conferencing Tools with JavaScript WebRTC

447 Negotiate Connections Securely Using the WebRTC API in JavaScript

448 Create Persistent Sockets with the WebSockets API in JavaScript

449 Send and Receive Real-Time Data Using JavaScript WebSockets

450 Build Chat Apps and Multiplayer Games via JavaScript WebSockets

451 Manage State Across Sessions with the WebSockets API in JavaScript

452 Push Data Instantly to Clients Using JavaScript WebSockets

453 Establish Reliable, Low-Latency Connections with the WebTransport API in JavaScript

454 Stream Data Continuously Using JavaScript WebTransport

455 Improve Responsiveness in Web Apps with the WebTransport API in JavaScript

456 Send Unreliable or Partially Ordered Data via JavaScript WebTransport

457 Enhance Real-Time Apps with JavaScript WebTransport Streams

458 Add Subtitles and Captions Using WebVTT in JavaScript

459 Synchronize Text Tracks with Media via JavaScript WebVTT

460 Display Multi-Language Subtitles Using JavaScript and WebVTT

461 Integrate Accessibility Features via the WebVTT API in JavaScript

462 Customize Subtitle Styling Using JavaScript WebVTT Integration

463 Make AJAX Requests with XMLHttpRequest in JavaScript

464 Handle XML and JSON Responses via JavaScript XMLHttpRequest

465 Manage Error Handling and Timeouts Using XMLHttpRequest in JavaScript

466 Load Dynamic Content Without Reloading via XMLHttpRequest in JavaScript

467 Implement Old-School Data Fetching Using JavaScript XMLHttpRequest