Mercurial > js4py

comparison core-javascript/javascript-exercises/scope-exercises.js @ 191:74fc8108fef2 javascript-exercises

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$ python py/remove_answers.py
author jf3243
date Mon, 21 Nov 2011 16:50:01 +0000
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190:6e302e558f09 191:74fc8108fef2
1 var something;
2
3 TEST('read scope', function()
4 {
5 var a;
6 a = 3;
7
8 // 1
9 var fn_1 = function(a){
10 return a;
11 };
12
13 assert( fn_1(42) === something );
14
15 // 2
16 var fn_2 = function(b){
17 return a;
18 };
19
20 assert( fn_2(42) === something );
21
22 // 3
23 var fn_3 = function(b){
24 var a = b - 10;
25 return a;
26 };
27
28 assert( fn_3(42) === something );
29 });
30
31
32 TEST('assign scope', function()
33 {
34 var a;
35
36 // 1
37 var fn_1 = function(a){
38 a = 5;
39 };
40
41 a = 3;
42 fn_1(42);
43 assert( a === something );
44
45 // 2
46 var fn_2 = function(b){
47 a = 5;
48 };
49
50 a = 3;
51 fn_2(42);
52 assert( a === something );
53
54 // 3
55 var fn_3 = function(b){
56 var a = b;
57 };
58
59 a = 3;
60 fn_3(42);
61 assert( a === something );
62
63 // 4
64 var fn_4 = function(b){
65 a = b;
66 };
67
68 a = 3;
69 fn_4(42);
70 assert( a === something );
71 });
72
73
74 TEST('function body', function()
75 {
76 var a;
77 var b;
78
79 var fn_1 = function(c){
80 // Please write your answer here.
81 };
82
83 a = 3;
84 b = fn_1(5);
85 assert( a === 5);
86 assert( b === 3 * 5 );
87
88 });