Resize

const · packages/primitives/src/observers/resize.ts:17

const Resize: Mount.MountDefinitionNoArgs<
  'Resize',
  { readonly _tag: 'Resized'; readonly width: number; readonly height: number }
>

Element size as a Mount: ResizeObserver reports content-box changes as Messages for the element carrying this Mount. No observer (SSR, old browser) emits nothing instead of throwing.

In the guides

• Which form a primitive takesPrimitives / foldkit-primitives
• Find one by the jobPrimitives / foldkit-primitives
• The mapPrimitives / foldkit-primitives
• foldkit-primitives/observersPrimitives / Observers
• Start with one: an element's sizePrimitives / Observers