14 lines
358 B
JavaScript
14 lines
358 B
JavaScript
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function is_Int(num) {
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if (typeof num !== 'number')
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return false;
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return !isNaN(num) &&
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parseInt(Number(num)) == num &&
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!isNaN(parseInt(num, 10));
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}
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console.log(is_Int(23));
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console.log(is_Int(4e2));
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console.log(is_Int(NaN));
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console.log(is_Int(23.75));
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console.log(is_Int(-23));
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