10 lines
343 B
JavaScript
10 lines
343 B
JavaScript
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function is_Natural(n)
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{
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if (typeof n !== 'number')
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return 'Not a number';
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return (n >= 0.0) && (Math.floor(n) === n) && n !== Infinity;
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}
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console.log(is_Natural(-15));
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console.log(is_Natural(1));<br>console.log(is_Natural(10.22));
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console.log(is_Natural(10/0));
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