TLAssetPartial • tldraw Docs

Partial type for TLAsset allowing optional properties except id and type. Useful for creating or updating assets where not all properties need to be specified.

type TLAssetPartial<T extends TLAsset = TLAsset> = T extends T
  ? {
      id: TLAssetId;
      meta?: Partial<T["meta"]>;
      props?: Partial<T["props"]>;
      type: T["type"];
    } & Partial<Omit<T, "id" | "meta" | "props" | "type">>
  : never;

Example

// Create a partial asset for updating
const partialAsset: TLAssetPartial<TLImageAsset> = {
  id: "asset:image123",
  type: "image",
  props: {
    w: 800, // Only updating width
  },
};

// Use in asset updates
editor.updateAssets([partialAsset]);