javascript - Shorthand for Object.create() with multiple properties

Question

If I want to create an object in JavaScript that has a prototype link to another object, but has several of it's own properties how can I do this?

var object1 = {
  a: 1,
  b: 2
};

var object2 = Object.create( object1 );
object2.c = 3;
object2.d = 4;

console.log( object2 ); // my new object with object1 as it's prototype link

Answer 1

You can combine Object.create with Object.assign for this:

var object2 = Object.assign(Object.create(object1), {
    c: 3,
    d: 4
});