Updating inherited property

Question

var foo = {x: 1}
var bar = {__proto__: foo} // __proto__ specific to implementation
var bar = Object.create(foo) // same result as above with standard API 
console.l         


        

Answer 1

Assigning to an object property creates or updates the object's own property, there is no search on the prototype chain for an inherited property.

See ECMAScript Simple Assignment ( = ) §11.13.1.