var myObject = { label: 'foo', name: 'bar', id: 12 }; myObject = {...myObject, label: 'baz', name: 'qux'}; console.log(myObject); // Or, if your update is contained in its own object: var myUpdate = { label: 'something', name: 'else' } myObject = {...myObject, ...myUpdate} console.log(myObject)