lodash / lodash

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	import baseFlatten from './.internal/baseFlatten.js'
	import map from './map.js'

	/**
	* Creates a flattened array of values by running each element in `collection`
	* thru `iteratee` and flattening the mapped results. The iteratee is invoked
	* with three arguments: (value, index\|key, collection).
	*
	* @since 4.0.0
	* @category Collection
	* @param {Array\|Object} collection The collection to iterate over.
	* @param {Function} iteratee The function invoked per iteration.
	* @returns {Array} Returns the new flattened array.
	* @see flatMapDeep, flatMapDepth, flatten, flattenDeep, flattenDepth, map, mapKeys, mapValues
	* @example
	*
	* function duplicate(n) {
	* return [n, n]
	* }
	*
	* flatMap([1, 2], duplicate)
	* // => [1, 1, 2, 2]
	*/
	function flatMap(collection, iteratee) {
	return baseFlatten(map(collection, iteratee), 1)
	}

	export default flatMap

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