text: /**
  * @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 getOwnPropertySymbols = require( './../../property-symbols' );
  var getOwnPropertyNames = require( './../../property-names' );
  var getPrototypeOf = require( './../../get-prototype-of' );
  
  
  // FUNCTIONS //
  
  /**
  * Returns a boolean indicating if an array contains a provided value.
  *
  * @private
  * @param {Array} arr - array
  * @param {*} v - search value
  * @returns {boolean} boolean indicating if an array contains a search value
  */
  function contains( arr, v ) {
  	var i;
  	for ( i = 0; i < arr.length; i++ ) {
  		if ( arr[ i ] === v ) {
  			return true;
  		}
  	}
  	return false;
  }
  
  
  // MAIN //
  
  /**
  * Returns an array of an object's own and inherited property names and symbols.
  *
  * @param {*} value - input object
  * @returns {Array} a list of own and inherited property names and symbols
  *
  * @example
  * var props = propertiesIn( [] );
  * // returns [...]
  */
  function propertiesIn( value ) {
  	var out;
  	var obj;
  	var tmp;
  	var i;
  
  	if ( value === null || value === void 0 ) {
  		return [];
  	}
  	// Cast the value to an object:
  	obj = Object( value );
  
  	// Walk the prototype chain collecting all properties...
  	out = [];
  	do {
  		tmp = getOwnPropertyNames( obj );
  		for ( i = 0; i < tmp.length; i++ ) {
  			if ( contains( out, tmp[ i ] ) === false ) {
  				out.push( tmp[ i ] );
  			}
  		}
  		tmp = getOwnPropertySymbols( obj );
  		for ( i = 0; i < tmp.length; i++ ) {
  			if ( contains( out, tmp[ i ] ) === false ) {
  				out.push( tmp[ i ] );
  			}
  		}
  		obj = getPrototypeOf( obj );
  	} while ( obj );
  
  	return out;
  }
  
  
  // EXPORTS //
  
  module.exports = propertiesIn;
  