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Add additional function overload for derived #6172

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Apr 9, 2021
Merged

Add additional function overload for derived #6172

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14 changes: 14 additions & 0 deletions src/runtime/store/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,20 @@ export function derived<S extends Stores, T>(
initial_value?: T
): Readable<T>;

/**
* Derived value store by synchronizing one or more readable stores and
* applying an aggregation function over its input values.
*
* @param stores - input stores
* @param fn - function callback that aggregates the values
* @param initial_value - initial value
*/
export function derived<S extends Stores, T>(
stores: S,
fn: (values: StoresValues<S>) => T,
initial_value?: T
): Readable<T>;

/**
* Derived value store by synchronizing one or more readable stores and
* applying an aggregation function over its input values.
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