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cross-tab communication

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Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Jun 15, 2025 · Frontend Development

Master Cross‑Tab Communication: BroadcastChannel vs localStorage in JavaScript

Learn how to synchronize data across multiple browser tabs using the native BroadcastChannel API and the fallback localStorage + storage event, with step‑by‑step code examples, usage scenarios, feature comparisons, compatibility notes, and a reusable TabMessenger class for seamless inter‑tab messaging.

BroadcastChannelJavaScriptWeb API
0 likes · 9 min read
Master Cross‑Tab Communication: BroadcastChannel vs localStorage in JavaScript
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Dec 6, 2023 · Frontend Development

Cross‑Tab Communication with Drag‑and‑Drop Using BroadcastChannel in JavaScript

This article demonstrates how to implement cross‑tab communication in browsers by converting screen and client coordinates and using the BroadcastChannel API to synchronize draggable elements across multiple windows, complete with full HTML/JavaScript code examples.

BroadcastChannelDrag and DropJavaScript
0 likes · 8 min read
Cross‑Tab Communication with Drag‑and‑Drop Using BroadcastChannel in JavaScript