Touch End Counter

How the Touch End Counter Works

The Touch End Counter adds 1 every time the browser fires a touch-end or pointer-up event, which happens when a finger lifts from the screen.

1. Touch and lift: Each lift fires one end event.
2. Lift several fingers: Each finger lifted fires its own end event.
3. Watch for gaps: The tool compares end events with start events.
4. Read missing ends: Starts minus ends minus cancels shows contacts still down or lost.

Touch End Counter Formula

The Touch End Counter total equals the number of touch-end events received. Unmatched contacts equal starts minus ends minus cancels.

Ends

Lift events received

Starts

Contact-start events

Cancels

Cancelled contacts

Example: A session logs 120 starts, 117 ends and 2 cancels. Unmatched = 120 − 117 − 2 = 1 contact still down or lost.

Touch End Counter Reference Table

The Touch End Counter conversion table shows how start, end and cancel totals reveal touch-event health.

About the Touch End Counter

A Touch End Counter is a diagnostic tool that tallies contact-end events from the browser. End events mark the moment contact stops.

Most on-screen buttons act on the end event, so a missed end event means a missed action. Counting ends next to starts exposes stuck touches, which leave a control pressed after the finger has lifted.

Ways to Use the Touch End Counter

The Touch End Counter has 5 key uses, including stuck-touch detection and release-action testing.

• ✓Stuck-touch detection: Find contacts that never fire an end event.
• ✓Release-action testing: Confirm buttons receive every pointer-up event.
• ✓Browser comparison: Compare end-event reliability across Chrome, Safari and Firefox.
• ✓Screen edge tests: Check end events when fingers lift near the bezel.
• ✓Drag testing: Confirm drag-and-drop ends fire on release.