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function getReversedNumber(num) {
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const isNegative = num < 0;
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const reverseNumber = parseInt([...("" + Math.abs(num))].reverse().join(""));
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return isNegative ? reverseNumber * -1 : reverseNumber;
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}
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console.log(getReversedNumber(12));
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console.log(getReversedNumber(-123));
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