Updating javascript object property?

Question

I have a structure like the following:

skillet.person = {
  name: {
    first: \'\',
    last: \'\'
  }, 
  age: {
    current: \'\' 
  },
  birthday: {
    day:         


        

Answer 1

On recent browsers with ECMAScript 2015, you can do:

Object.assign(skillet.person.name, { first: 'blah', last: 'ha'});

which will preserve any existing attribute not listed in the right object.

Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign

[EDIT] With ES7, you can do even shorter (but is it clearer?...):

{...skillet.person.name, ...{ first: 'blah', last: 'ha'}};

Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax