58 lines
1.4 KiB
JavaScript
58 lines
1.4 KiB
JavaScript
/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var isArrayArray = require( '@stdlib/assert/is-array-array' );
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// MAIN //
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/**
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* Creates an object from an array of key-value pairs.
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*
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* @param {ArrayArray} entries - input object
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* @throws {TypeError} must provide an array of arrays
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* @returns {Object} object created from `[key, value]` pairs
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*
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* @example
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* var entries = [ ['beep', 'boop'], ['foo', 'bar'] ];
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*
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* var obj = objectFromEntries( entries );
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* // returns {'beep': 'boop', 'foo': 'bar'}
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*/
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function objectFromEntries( entries ) {
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var out;
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var i;
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if ( !isArrayArray( entries ) ) {
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throw new TypeError( 'invalid argument. Must provide an array of arrays. Value: `'+entries+'`.' );
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}
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out = {};
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for ( i = 0; i < entries.length; i++ ) {
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out[ entries[i][0] ] = entries[ i ][ 1 ];
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}
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return out;
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}
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// EXPORTS //
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module.exports = objectFromEntries;
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