owenconti · February 20, 2017 23:23
diff --git a/closure-function b/closure-function
 function a() {
  var hello = "world";
  
  function b() {
    alert(hello);
  }
  
  b();
 }

 a(); // alerts 'world'

 // b() is a closure
	function a() {
	var hello = "world";

	function b() {
	alert(hello);
	}

	b();
	}

	a(); // alerts 'world'

	// b() is a closure