27 lines
936 B
JavaScript
27 lines
936 B
JavaScript
try {
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assert(Number.length === 1);
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assert(typeof Number() === "number");
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assert(typeof new Number() === "object");
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assert(Number() === 0);
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assert(new Number().valueOf() === 0);
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assert(Number("42") === 42);
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assert(new Number("42").valueOf() === 42);
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assert(Number(null) === 0);
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assert(new Number(null).valueOf() === 0);
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assert(Number(true) === 1);
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assert(new Number(true).valueOf() === 1);
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assert(isNaN(Number(undefined)));
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assert(isNaN(new Number(undefined).valueOf()));
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assert(isNaN(Number({})));
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assert(isNaN(new Number({}).valueOf()));
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assert(isNaN(Number({a: 1})));
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assert(isNaN(new Number({a: 1}).valueOf()));
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assert(isNaN(Number([1, 2, 3])));
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assert(isNaN(new Number([1, 2, 3]).valueOf()));
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assert(isNaN(Number("foo")));
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assert(isNaN(new Number("foo").valueOf()));
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console.log("PASS");
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} catch (e) {
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console.log("FAIL: " + e.message);
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}
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