1
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var baseAssignValue = require('./_baseAssignValue'),
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2
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baseForOwn = require('./_baseForOwn'),
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3
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baseIteratee = require('./_baseIteratee');
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4
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5
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/**
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6
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* The opposite of `_.mapValues`; this method creates an object with the
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7
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* same values as `object` and keys generated by running each own enumerable
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8
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* string keyed property of `object` thru `iteratee`. The iteratee is invoked
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9
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* with three arguments: (value, key, object).
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10
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*
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11
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* @static
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12
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* @memberOf _
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13
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* @since 3.8.0
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14
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* @category Object
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15
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* @param {Object} object The object to iterate over.
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16
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* @param {Function} [iteratee=_.identity] The function invoked per iteration.
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17
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* @returns {Object} Returns the new mapped object.
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18
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* @see _.mapValues
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19
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* @example
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20
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*
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21
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* _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
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22
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* return key + value;
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23
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* });
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24
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* // => { 'a1': 1, 'b2': 2 }
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25
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*/
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26
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function mapKeys(object, iteratee) {
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27
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var result = {};
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28
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iteratee = baseIteratee(iteratee, 3);
|
29
|
|
30
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baseForOwn(object, function(value, key, object) {
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31
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baseAssignValue(result, iteratee(value, key, object), value);
|
32
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});
|
33
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return result;
|
34
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}
|
35
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|
36
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module.exports = mapKeys;
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