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LibJS: Let isNaN() with no argument return true, add tests

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This commit is contained in:
Linus Groh 2020-04-22 18:05:22 +01:00 • committed by Andreas Kling
parent 602a36970f
commit 8ff2881b1a
2 changed files with 30 additions and 3 deletions
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5
Libraries/LibJS/Runtime/GlobalObject.cpp
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@ -137,9 +137,8 @@ Value GlobalObject::gc(Interpreter& interpreter)
Value GlobalObject::is_nan(Interpreter& interpreter)
{
if (interpreter.argument_count() < 1)
return js_undefined();
return Value(interpreter.argument(0).to_number().is_nan());
auto value = interpreter.argument(0).to_number();
return Value(value.is_nan());
}
}