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3// modification, are permitted provided that the following conditions are
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27
28// Test unary addition in various contexts.
29
30// Test value context.
31assertEquals(1, +'1');
32assertEquals(1, +1);
33assertEquals(1.12, +1.12);
34assertEquals(NaN, +undefined);
35assertEquals(NaN, +{});
36
37// Test effect context.
38assertEquals(1, eval("+'1'; 1"));
39assertEquals(1, eval("+1; 1"));
40assertEquals(1, eval("+1.12; 1"));
41assertEquals(1, eval("+undefined; 1"));
42assertEquals(1, eval("+{}; 1"));
43
44// Test test context.
45assertEquals(1, (+'1') ? 1 : 2);
46assertEquals(1, (+1) ? 1 : 2);
47assertEquals(1, (+'0') ? 2 : 1);
48assertEquals(1, (+0) ? 2 : 1);
49assertEquals(1, (+1.12) ? 1 : 2);
50assertEquals(1, (+undefined) ? 2 : 1);
51assertEquals(1, (+{}) ? 2 : 1);
52
53// Test value/test context.
54assertEquals(1, +'1' || 2);
55assertEquals(1, +1 || 2);
56assertEquals(1.12, +1.12 || 2);
57assertEquals(2, +undefined || 2);
58assertEquals(2, +{} || 2);
59
60// Test test/value context.
61assertEquals(2, +'1' && 2);
62assertEquals(2, +1 && 2);
63assertEquals(0, +'0' && 2);
64assertEquals(0, +0 && 2);
65assertEquals(2, +1.12 && 2);
66assertEquals(NaN, +undefined && 2);
67assertEquals(NaN, +{} && 2);
68