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Kayne Ruse
cc4ff3f6d8
The definition of '&&': Return the first falsy value, or the last value, skipping the evaluation of other operands. The definition of '||': Return the first truthy value, or the last value, skipping the evaluation of other operands. Toy now follows these definitions. Fixed #154
65 lines
1.1 KiB
Plaintext
65 lines
1.1 KiB
Plaintext
//logical short-circuits and chained assignments
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//logical AND
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{
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var a = 1;
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var b = 2;
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var c = a + 1 && b + 2;
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assert a == 1, "short circuit 1.1";
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assert b == 2, "short circuit 1.2";
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assert c == 4, "short circuit 1.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = (a + 1) && b + 2;
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assert a == 4, "short circuit 2.1";
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assert b == 2, "short circuit 2.2";
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assert c == 4, "short circuit 2.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = a + 1 && b + 2;
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assert a == 4, "short circuit 3.1";
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assert b == 2, "short circuit 3.2";
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assert c == 4, "short circuit 3.3";
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}
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//logical OR
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{
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var a = 1;
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var b = 2;
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var c = a + 1 || b + 2;
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assert a == 1, "short circuit 4.1";
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assert b == 2, "short circuit 4.2";
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assert c == 2, "short circuit 4.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = (a + 1) || b + 2;
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assert a == 2, "short circuit 5.1";
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assert b == 2, "short circuit 5.2";
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assert c == 2, "short circuit 5.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = a + 1 || b + 2;
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assert a == 2, "short circuit 6.1";
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assert b == 2, "short circuit 6.2";
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assert c == 2, "short circuit 6.3";
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}
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