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/*
* @license Apache-2.0
*
* Copyright (c) 2019 The Stdlib Authors.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// TypeScript Version: 2.0
interface Options {
/**
* Boolean indicating whether to store duplicate keys.
*/
duplicates?: boolean;
}
/**
* Inverts an object, such that keys become values and values become keys.
*
* @param obj - input object
* @param opts - function options
* @param opts.duplicates - boolean indicating whether to store duplicate keys (default: true)
* @returns inverted object
*
* @example
* var out = invert({
* 'a': 'beep',
* 'b': 'boop'
* });
* // returns { 'beep': 'a', 'boop': 'b' }
*
* @example
* var out = invert({
* 'a': 'beep',
* 'b': 'beep'
* });
* // returns { 'beep': [ 'a', 'b' ] }
*
* @example
* var obj = {};
* obj.a = 'beep';
* obj.b = 'boop';
* obj.c = 'beep'; // inserted after `a`
*
* var out = invert( obj, {
* 'duplicates': false
* });
* // returns { 'beep': 'c', 'boop': 'b' }
*/
declare function invert( obj: any, options?: Options ): any;
// EXPORTS //
export = invert;
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