This fork of deep-assign is exactly the same, except:
Non-writable properties will not be merged, and the original value will be kept.
$ npm install --save deep-assign-writable
var deepAssign = require('deep-assign-writable');
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, if it is writable.