TnnQ3iz0

1var num = 10;
2
3function addNum(myNum){
4  return num + myNum;
5}
6
7addNum(5);
8	
9function outerFunction() {
10    var num = 10;
11
12    function addNum(myNum){
13      return num + myNum;
14    }
15
16    alert(addNum(0));
17
18    num = 5;
19}
20
21outerFunction();
22	
23window.bob = "Bob"
24delete window.bob;
25window.bob; // undefined
26
27var bob = "Bob"
28delete window.bob;
29bob; // "Bob"
30	
31function outer()
32{
33    var test = "hello";
34    var blah = function() { window.alert(test); };
35    blah();
36    test = "not hello";
37    blah();
38}
39outer();
40	
41function outerFunction() {
42    var num = 10;
43    function addNum(myNum){
44        return num + myNum;
45    }
46    alert(addNum(0));
47    num = 5;
48}
49outerFunction();
50	
51...
52window.addNum = function(myNum) {
53     return num + myNum;
54}
55...
56	
57// man is not the value "Jonh Resig"
58// it's a pointer to SOME 'man', existing in the memory
59var man = "John Resig";
60
61function haveSex(woman) {
62     return man + woman; // creating a baby;
63}
64haveSex("Some Girl");      // baby of "Some Girl" and Resig
65man = "Douglas Crockford"; // changing `man` reference to point to another object
66haveSex("Some Girl");      // baby of "Some Girl" and Crockford
67	
68function getFunctions() {
69    var functions = [];
70    for (var i=0; i < 10; i++) {
71        functions.push(function() { window.alert(i); });
72    }
73    return functions;
74}
75functionArray = getFunctions();
76for (var j=0; j < functionArray.length; j++) {
77    functionArray[j]();
78}