Version 2 of this module ended up being something I don't want and I don't have time to fix it.
Check out lodash.merge or merge-options instead.
Recursive
Object.assign()
$ npm install --save deep-assign
var deepAssign = require('deep-assign');
deepAssign({a: {b: 0}}, {a: {b: 1, c: 2}}, {a: {c: 3}});
//=> {a: {b: 1, c: 3}}Recursively assigns own enumerable properties of source objects to the target object and returns the target object. Additional source objects will overwrite previous ones.
- object-assign - ES2015 Object.assign() ponyfill
MIT © Sindre Sorhus