Lodash

mapKeys

Object
since 3.8.0

Arguments

  • Object The object to iterate over.
  • Function The function invoked per iteration.

Returns

Object the new mapped object.

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).

Example of Lodash _.mapKeys

_.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
  return key + value;
});
// => { 'a1': 1, 'b2': 2 }