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.
37 lines
1.1 KiB
37 lines
1.1 KiB
8 months ago
|
var baseAssignValue = require('./_baseAssignValue'),
|
||
|
|
baseForOwn = require('./_baseForOwn'),
|
||
|
|
baseIteratee = require('./_baseIteratee');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The opposite of `_.mapValues`; this method creates an object with the
|
||
|
|
* same values as `object` and keys generated by running each own enumerable
|
||
|
|
* string keyed property of `object` thru `iteratee`. The iteratee is invoked
|
||
|
|
* with three arguments: (value, key, object).
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 3.8.0
|
||
|
|
* @category Object
|
||
|
|
* @param {Object} object The object to iterate over.
|
||
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
||
|
|
* @returns {Object} Returns the new mapped object.
|
||
|
|
* @see _.mapValues
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
|
||
|
|
* return key + value;
|
||
|
|
* });
|
||
|
|
* // => { 'a1': 1, 'b2': 2 }
|
||
|
|
*/
|
||
|
|
function mapKeys(object, iteratee) {
|
||
|
|
var result = {};
|
||
|
|
iteratee = baseIteratee(iteratee, 3);
|
||
|
|
|
||
|
|
baseForOwn(object, function(value, key, object) {
|
||
|
|
baseAssignValue(result, iteratee(value, key, object), value);
|
||
|
|
});
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = mapKeys;
|