DkEaL Value Watcher

A console script that watches the text of a .DkEaL element and beeps when it changes.

Usage

1. Open your browser DevTools console on the target page.
2. Paste and run the script.
3. It stores the current value and alerts you on any change.

How it works

• Reads document.querySelector('.DkEaL').textContent and saves it.
• Watches for changes using a MutationObserver (event-driven, instant) or setInterval (polling, every 1 minute).
• On change, plays a 400 Hz tone for 0.5s via the Web Audio API.

Stopping

Call stopWatcher() in the console to stop watching.

Notes

• Audio may be blocked until you interact with the page (click anywhere), due to browser autoplay rules.
• The DkEaL class looks auto-generated and may change on reload — rerun with the new selector if it stops matching.
• If the page replaces the element instead of editing its text (common in single-page apps like Google Maps), observe a stable parent container with subtree: true and re-query inside the callback.