Lodash assign method

_.assign(object, [sources])

Assigns own enumerable string keyed properties of source objects to the destination object. Source objects are applied from left to right. Subsequent sources overwrite property assignments of previous sources.

var _ = require('lodash');
 function Foo() {
   this.a = 1;
}
function Bar() {
   this.b = 2;
}
console.log(_.assign({ 'a': 0 }, new Foo, new Bar));

Save the above program in tester.js. Run the following command to execute this program.

\>node tester.js

{ a: 1, b: 2 }