mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-29 06:27:49 +00:00
39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
/**
|
|
* lodash 4.2.1 (Custom Build) <https://lodash.com/>
|
|
* Build: `lodash modularize exports="npm" -o ./`
|
|
* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
|
|
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
|
|
* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
|
|
* Available under MIT license <https://lodash.com/license>
|
|
*/
|
|
var baseFlatten = require('lodash._baseflatten'),
|
|
map = require('lodash.map');
|
|
|
|
/**
|
|
* Creates a flattened array of values by running each element in `collection`
|
|
* through `iteratee` and flattening the mapped results. The iteratee is
|
|
* invoked with three arguments: (value, index|key, collection).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Collection
|
|
* @param {Array|Object} collection The collection to iterate over.
|
|
* @param {Array|Function|Object|string} [iteratee=_.identity]
|
|
* The function invoked per iteration.
|
|
* @returns {Array} Returns the new flattened array.
|
|
* @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);
|
|
}
|
|
|
|
module.exports = flatMap;
|