Merge

var Baobab = require('baobab');

var tree = new Baobab({
  user: {
    name: 'Bob',
    settings: {
      foo: 'bar'
    }
  }
});

tree.select('user').merge({ age: 30, likes: 'apples'});

// **Note!** The merge method will only do a *shallow merge*. 
// The following change:
tree.select('user').merge({ age: 30, settings: {show: 'something'}});

// Will override the complete settings object, not merge:
tree.select('user').get(); // { name: 'Bob', settings: {show: 'something'} }