test hoisting on browser

hoisting.js

var hoisted = "foo" in this;
console.log(`'foo' name ${hoisted ? "is" : "is not"} hoisted. typeof foo is ${typeof foo}`);
if (false) {
  function foo(){ return 1; }
}

// In Chrome: 
// 'foo' name is hoisted. typeof foo is undefined
// 
// In Firefox:
// 'foo' name is hoisted. typeof foo is undefined
//
// In Edge:
// 'foo' name is not hoisted. typeof foo is undefined
// 
// In Safari:
// 'foo' name is hoisted. typeof foo is function