16 lines
427 B
JavaScript
Vendored
16 lines
427 B
JavaScript
Vendored
/*!
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* is-natural-number.js | MIT (c) Shinnosuke Watanabe
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* https://github.com/shinnn/is-natural-number.js
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*/
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export default (function() {
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if (Number.isInteger) {
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return function isNaturalNumber(val, zero) {
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return val >= (zero ? 0 : 1) && Number.isInteger(val);
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};
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}
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return function isNaturalNumber(val, zero) {
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return val >= (zero ? 0 : 1) && val !== Infinity && Math.floor(val) === val;
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};
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})();
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