This API is provided as a preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
Given an input array and a
callback function, invoke the callback to start a promise for each element in the array.
static forEachAsync<TEntry>(array: TEntry, callback: (entry: TEntry, arrayIndex: number) => Promise<void>, options?: IAsyncParallelismOptions | undefined): Promise<void>;
|array||TEntry||the array of inputs for the callback function|
|callback||(entry: TEntry, arrayIndex: number) => Promise<void>||a function that starts an asynchronous promise for an element from the array|
|options||IAsyncParallelismOptions | undefined||options for customizing the control flow|
This API is similar to the system
Array#forEach, except that the loop is asynchronous, and the maximum number of concurrent promises can be throttled using IAsyncParallelismOptions.concurrency.
callback throws a synchronous exception, or if it returns a promise that rejects, then the loop stops immediately. Any remaining array items will be skipped, and overall operation will reject with the first error that was encountered.