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

$ python py/remove_answers.py
author jf3243
date Mon, 21 Nov 2011 16:50:01 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core-javascript/javascript-exercises/scope-exercises.js	Mon Nov 21 16:50:01 2011 +0000
@@ -0,0 +1,88 @@
+var something;
+
+TEST('read scope', function()
+{
+    var a;
+    a = 3;
+
+    // 1
+    var fn_1 = function(a){
+        return a;
+    };
+
+    assert( fn_1(42) === something );
+
+    // 2
+    var fn_2 = function(b){
+        return a;
+    };
+
+    assert( fn_2(42) === something );
+
+    // 3
+    var fn_3 = function(b){
+        var a = b - 10;
+        return a;
+    };
+
+    assert( fn_3(42) === something );
+});
+
+
+TEST('assign scope', function()
+{
+    var a;
+
+    // 1
+    var fn_1 = function(a){
+        a = 5;
+    };
+
+    a = 3;
+    fn_1(42);
+    assert( a === something );
+
+    // 2
+    var fn_2 = function(b){
+        a = 5;
+    };
+
+    a = 3;
+    fn_2(42);
+    assert( a === something );
+
+    // 3
+    var fn_3 = function(b){
+        var a = b;
+    };
+
+    a = 3;
+    fn_3(42);
+    assert( a === something );
+
+    // 4
+    var fn_4 = function(b){
+        a = b;
+    };
+
+    a = 3;
+    fn_4(42);
+    assert( a === something );
+});
+
+
+TEST('function body', function()
+{
+    var a;
+    var b;
+
+    var fn_1 = function(c){
+        // Please write your answer here.
+    };
+
+    a = 3;
+    b = fn_1(5);
+    assert( a === 5);
+    assert( b === 3 * 5 );
+
+});