API > @blocksuite/blocks > normalizeWheelDeltaY
Function: normalizeWheelDeltaY ​
normalizeWheelDeltaY(
delta,zoom=1):number
Normalizes wheel delta.
See https://stackoverflow.com/a/13650579
From https://github.com/excalidraw/excalidraw/blob/master/src/components/App.tsx MIT License
Parameters ​
| Parameter | Type | Default value |
|---|---|---|
delta | number | undefined |
zoom | number | 1 |
Returns ​
number
Defined In ​
packages/blocks/src/surface-block/utils/index.ts:19