var foo = { a: 42 }; 

// create `bar` and link it to foo 
var bar = Object.create( foo ); 

bar.b = "hello world from bar.b"; 
console.log( bar.b ); // "hello world" 
console.log ("The property 'bar.a' was delegated to the foo prototype. 'bar.a'  has the value "+  bar.a ); // 42 <-- delegated to ` foo `

foo.hello = "hello from foo";
console.log ("Attributes added after the initialization are also seen.")
console.log(" The new property 'foo.hello' can be accessed by 'bar': "+bar.hello );