mirror of
https://github.com/denoland/deno
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30 lines
1.2 KiB
TypeScript
30 lines
1.2 KiB
TypeScript
/*! *****************************************************************************
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Copyright (c) Microsoft Corporation. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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this file except in compliance with the License. You may obtain a copy of the
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License at http://www.apache.org/licenses/LICENSE-2.0
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THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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MERCHANTABLITY OR NON-INFRINGEMENT.
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See the Apache Version 2.0 License for specific language governing permissions
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and limitations under the License.
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***************************************************************************** */
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/// <reference no-default-lib="true"/>
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interface ObjectConstructor {
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/**
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* Groups members of an iterable according to the return value of the passed callback.
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* @param items An iterable.
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* @param keySelector A callback which will be invoked for each item in items.
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*/
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groupBy<K extends PropertyKey, T>(
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items: Iterable<T>,
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keySelector: (item: T, index: number) => K,
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): Partial<Record<K, T[]>>;
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}
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