JS days - Part 3 - Scope Chain

scope.js

function b (){
  // reference outer environment
  console.log(myVar, 'myVar inside function b')
}

function a(){
  var myVar=2
  console.log(this===global)
  console.log(myVar,'myVar inside function a')
  console.log(this.myVar,'this.myVar inside function a')
  b()
}
var myVar=1
a()
console.log(a.prototype.__proto__)
// console.log(Object.keys(a),'keys')
// function dir(object) {
//     stuff = [];
//     for (s in object) {
//         stuff.push(s);
//     }
//     stuff.sort();
//     return stuff;
// }
// console.log(dir(a),'dir')

// the problem is function b sits 
// lexically in the global environment
// where the funciton is physically written
// that whole is chain called scope chain
//SCOPE - where your variable is in your code