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LibJS: Implement Number.isInteger()
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3 changed files with 46 additions and 0 deletions
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@ -41,6 +41,7 @@ NumberConstructor::NumberConstructor()
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: NativeFunction("Number", *interpreter().global_object().function_prototype())
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{
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put_native_function("isFinite", is_finite, 1);
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put_native_function("isInteger", is_integer, 1);
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put_native_function("isNaN", is_nan, 1);
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put_native_function("isSafeInteger", is_safe_integer, 1);
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@ -80,6 +81,12 @@ Value NumberConstructor::is_finite(Interpreter& interpreter)
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return Value(interpreter.argument(0).is_finite_number());
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}
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Value NumberConstructor::is_integer(Interpreter& interpreter)
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{
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auto value = interpreter.argument(0);
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return Value(value.is_number() && (i32)value.as_double() == value.as_double());
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}
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Value NumberConstructor::is_nan(Interpreter& interpreter)
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{
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return Value(interpreter.argument(0).is_nan());
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@ -43,6 +43,7 @@ private:
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virtual const char* class_name() const override { return "NumberConstructor"; }
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static Value is_finite(Interpreter&);
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static Value is_integer(Interpreter&);
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static Value is_nan(Interpreter&);
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static Value is_safe_integer(Interpreter&);
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};
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