Does javascript autobox?

Question

While working on another problem, I created this fiddle:

http://jsfiddle.net/tr2by/

function foo() {
    // console.log(_.isBoolean(this));
    conso         


        

Answer 1

Javascript boxes the this argument provided to call and apply in non-strict mode. From MDN:

if the method is a function in non-strict mode code, null and undefined will be replaced with the global object, and primitive values will be boxed.