this... and "use strict";

gistfile1.js

"use strict"; //<= comment out strict mode after running it to see the output.
function self(){
    console.log(this);
}

console.log("with gOPN this:" + Object.getOwnPropertyNames(this)); // => []
console.log("just cl this:" + this); // => {} 
console.log("with gOPN this.__proto__:" + Object.getOwnPropertyNames(this.__proto__));
console.log("just cl this.__proto__:" + this.__proto__);
process.stdout.write("function self: ");
self();