JS: Does Object.assign() create deep copy or shallow copy

Question

I just came across this concept of

var copy = Object.assign({}, originalObject);

which creates a copy of original object into the \"

Answer 1

For small Data structures I see that JSON.stringify() and JSON.parse() work nice.

// store as JSON
var copyOfWindowLocation = JSON.stringify(window.location)
console.log("JSON structure - copy:", copyOfWindowLocation)
// convert back to Javascript Object
copyOfWindowLocation = JSON.parse(copyOfWindowLocation)
console.log("Javascript structure - copy:", copyOfWindowLocation)