hackjutsu · October 15, 2016 00:28
diff --git a/lexical_scope.js b/lexical_scope.js
 var a = 10;
 function add() {
  var b = 20;
  return a + b; // a is bound to the global a when the function object add() is created.
 }

 // call add() -> 30

 (function() {
  var a = 20;
  var result = add();
  console.log("result: " + result);
 }())

 // result: 30
	var a = 10;
	function add() {
	var b = 20;
	return a + b; // a is bound to the global a when the function object add() is created.
	}

	// call add() -> 30

	(function() {
	var a = 20;
	var result = add();
	console.log("result: " + result);
	}())

	// result: 30
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