@univerjs/engine-render v0.5.4

Type Alias: Immutable<T>

type Immutable<T> = T extends Primitive ? T : T extends infer U[] ? readonly U[] : DeepImmutable<T>;

Defined in: packages/api/tmp/univer-pro/submodules/univer/packages/engine-render/src/basics/i-events.ts:57

Type modifier to make all the properties of an object Readonly

Type Parameters