Horizontal scroll test
I-tilt ang wheel, igulong ang trackball, o mag-swipe nang pahalang. Preselected ng page na ito ang horizontal na direksyon at iniuulat kung aling deltaX events ang natanggap ng browser mo.
Horizontal scroll test
Not tested yet01Input type
Choose “Touchpad / Free-spin” for touchpads or free-spinning wheels — coasting and inertia are normal there and the wording stays cautious.
02Test direction
03Test duration
A longer duration provides a larger observation sample. It does not make the result inherently accurate.
04Active test area
Not tested yet — press Start Test, then scroll here
waiting for input
05Live result
Live graph: no input yet. Each tick is one received wheel event; tick height reflects delta size.
Run dashboard — browser-observed values
Every value below describes events this browser delivered. Units are shown beside each metric; mixed delta units are never summed in the analysis.
| Metric | Value | Unit |
|---|---|---|
| Duration (configured) | — | s |
| Sample count (events) | — | events |
| Event rate | — | events/s |
| Latest deltaY | — | delta units |
| Accumulated vertical input | — | delta units |
| Positive / negative peaks (deltaY) | — | delta units |
| DeltaMode mix (pixel / line / page) | — | events |
| Latest deltaX | — | delta units |
| Accumulated horizontal input | — | delta units |
| Expected-direction changes | — | count |
| Possible opposite-direction events | — | events |
Observation: Result
Sample quality
Test validity
Timing profile
Timing and magnitude profile of received events — descriptive only. Event gaps are measured from browser delivery times, not hardware polling.
View event table
View run summary
Run A / Run B
Paano basahin ang test na ito
- Preselected ang Horizontal na direksyon. Mag-calibrate gamit ang mabagal na slides, saka panatilihin ang matatag na pahalang na galaw sa buong tagal.
- Maraming vertical wheel ang nag-uulat ng deltaX: 0 — nangangahulugang walang pahalang na input ang device, na normal, hindi failure.
- Ang nangingibabaw na pahalang na direksyon ang nagpapasya; ang minority-side events ay binibilang na opposite. Madalas mag-coast ang touchpad swipes pagkatapos iangat ang daliri, kaya inaasahan ang trailing events sa alinmang direksyon.
- Ang Ctrl+wheel gestures ay pinch-zoom, hindi scrolling — binibilang nang hiwalay at hindi kasama sa direksyon.
Kung hindi dumarating ang pahalang na input
Kumpirmahin munang nagpapadala ang hardware: sumubok ng tilt-click sa ibang app, suriin ang OS settings para sa scroll ng inactive windows at direksyon, at sumubok ng ibang browser. Kung nananatiling zero ang deltaX saanman sa device na dapat magpadala, mas mahalaga ang pattern na iyon — umuulit sa mga app — kaysa alinmang timed run dito.
Bumalik sa vertical mouse scroll test, o basahin ang paano gumagana ang pagsukat.