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mapValues

_.mapValues(iteratee, object) # Ⓢ [Ⓣ][1] Ⓝ

Creates an object with the same keys as object and values generated



by running each own enumerable string keyed property of object thru



iteratee. The iteratee is invoked with three arguments:



(value, key, object).

Since​

2.4.0

Arguments​

  1. iteratee (Function): The function invoked per iteration.
  2. object (Object): The object to iterate over.

Returns​

(Object): Returns the new mapped object.

Example​

var users = {
  'fred':    { 'user': 'fred',    'age': 40 },
  'pebbles': { 'user': 'pebbles', 'age': 1 }
};

_.mapValues(function(o) { return o.age; }, users);
// => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)

// The `_.property` iteratee shorthand.
_.mapValues('age', users);
// => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)