Loading · API reference

Import

import { Loading } from "@typed/async-data";

export interface Loading {
    readonly _tag: "Loading";
    readonly progress?: Progress | undefined;
}

Loading is separate from refreshing so consumers can decide whether stale content remains available.

This plain object acquires no resources; the operation it describes is owned elsewhere and the object is not frozen.

The discriminant for loading without a prior result.

The literal tag makes loading branches explicit and exhaustively checkable.

Inherits the resource-free lifetime of its enclosing state.

Optional progress reported by the active producer.

Keeping progress optional supports both determinate and uninstrumented operations.

Inherits the resource-free lifetime of its enclosing state.

import { loading } from "@typed/async-data"
const state = loading({ loaded: 0 })