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* @license Apache-2.0
*
* Copyright (c) 2018 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.
*/
'use strict';
// MODULES //
var objectKeys = require( '@stdlib/utils/keys' );
var isObjectLike = require( '@stdlib/assert/is-object-like' );
var format = require( '@stdlib/string/format' );
// MAIN //
/**
* Returns an array of an object's own enumerable property `[key, value]` pairs.
*
* @param {ObjectLike} obj - input object
* @throws {TypeError} must provide an object-like value
* @returns {Array} array containing key-value pairs
*
* @example
* var obj = {
* 'beep': 'boop',
* 'foo': 'bar'
* };
*
* var entries = objectEntries( obj );
* // e.g., returns [ ['beep', 'boop'], ['foo', 'bar'] ]
*/
function objectEntries( obj ) {
var keys;
var out;
var len;
var i;
if ( !isObjectLike( obj ) ) {
throw new TypeError( format( 'invalid argument. Must provide an object (except null). Value: `%s`.', obj ) );
}
keys = objectKeys( obj );
len = keys.length;
out = [];
for ( i = 0; i < len; i++ ) {
out.push( [ keys[i], obj[ keys[i] ] ] );
}
return out;
}
// EXPORTS //
module.exports = objectEntries;
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