forked from fdzcxy212206413/gsl_grs
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
30 lines
812 B
30 lines
812 B
1 month ago
|
var baseFlatten = require('./_baseFlatten'),
|
||
|
|
map = require('./map');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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).
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 4.0.0
|
||
|
|
* @category Collection
|
||
|
|
* @param {Array|Object} collection The collection to iterate over.
|
||
|
|
* @param {Function} [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;
|