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31 lines
796 B
31 lines
796 B
var baseFlatten = require('./_baseFlatten'), |
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map = require('./map'); |
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/** Used as references for various `Number` constants. */ |
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var INFINITY = 1 / 0; |
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/** |
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* This method is like `_.flatMap` except that it recursively flattens the |
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* mapped results. |
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* |
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* @static |
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* @memberOf _ |
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* @since 4.7.0 |
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* @category Collection |
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* @param {Array|Object} collection The collection to iterate over. |
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* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
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* @returns {Array} Returns the new flattened array. |
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* @example |
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* |
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* function duplicate(n) { |
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* return [[[n, n]]]; |
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* } |
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* |
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* _.flatMapDeep([1, 2], duplicate); |
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* // => [1, 1, 2, 2] |
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*/ |
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function flatMapDeep(collection, iteratee) { |
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return baseFlatten(map(collection, iteratee), INFINITY); |
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} |
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module.exports = flatMapDeep;
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