@wordpress/compose/build/hooks/use-observable-value/index.cjs.map

WordPress higher-order components (HOCs).

{
  "version": 3,
  "sources": ["../../../src/hooks/use-observable-value/index.ts"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { useMemo, useSyncExternalStore } from '@wordpress/element';\n\n/**\n * Internal dependencies\n */\nimport type { ObservableMap } from '../../utils/observable-map';\n\n/**\n * React hook that lets you observe an entry in an `ObservableMap`. The hook returns the\n * current value corresponding to the key, or `undefined` when there is no value stored.\n * It also observes changes to the value and triggers an update of the calling component\n * in case the value changes.\n *\n * @template K    The type of the keys in the map.\n * @template V    The type of the values in the map.\n * @param    map  The `ObservableMap` to observe.\n * @param    name The map key to observe.\n * @return   The value corresponding to the map key requested.\n */\nexport default function useObservableValue< K, V >(\n\tmap: ObservableMap< K, V >,\n\tname: K\n): V | undefined {\n\tconst [ subscribe, getValue ] = useMemo(\n\t\t() => [\n\t\t\t( listener: () => void ) => map.subscribe( name, listener ),\n\t\t\t() => map.get( name ),\n\t\t],\n\t\t[ map, name ]\n\t);\n\treturn useSyncExternalStore( subscribe, getValue, getValue );\n}\n"],
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