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