TypeScript/lib/lib.es2015.symbol.d.ts

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TypeScript

/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/// <reference no-default-lib="true"/>
interface SymbolConstructor {
/**
* A reference to the prototype.
*/
readonly prototype: Symbol;
/**
* Returns a new unique Symbol value.
* @param description Description of the new Symbol object.
*/
(description?: string | number): symbol;
/**
* Returns a Symbol object from the global symbol registry matching the given key if found.
* Otherwise, returns a new symbol with this key.
* @param key key to search for.
*/
for(key: string): symbol;
/**
* Returns a key from the global symbol registry matching the given Symbol if found.
* Otherwise, returns a undefined.
* @param sym Symbol to find the key for.
*/
keyFor(sym: symbol): string | undefined;
}
declare var Symbol: SymbolConstructor;