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23 lines
613 B
JavaScript
23 lines
613 B
JavaScript
import baseEach from './baseEach.js'
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import isArrayLike from '../isArrayLike.js'
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/**
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* The base implementation of `map`.
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*
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* @private
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* @param {Array|Object} collection The collection to iterate over.
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* @param {Function} iteratee The function invoked per iteration.
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* @returns {Array} Returns the new mapped array.
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*/
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function baseMap(collection, iteratee) {
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let index = -1
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const result = isArrayLike(collection) ? Array(collection.length) : []
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baseEach(collection, (value, key, collection) => {
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result[++index] = iteratee(value, key, collection)
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})
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return result
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}
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export default baseMap
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