mirror of https://github.com/jkjoy/sunpeiwen.git
19 lines
411 B
JavaScript
19 lines
411 B
JavaScript
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/*!
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* is-number <https://github.com/jonschlinkert/is-number>
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*
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* Copyright (c) 2014-present, Jon Schlinkert.
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* Released under the MIT License.
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*/
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'use strict';
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module.exports = function(num) {
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if (typeof num === 'number') {
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return num - num === 0;
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}
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if (typeof num === 'string' && num.trim() !== '') {
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return Number.isFinite ? Number.isFinite(+num) : isFinite(+num);
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}
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return false;
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};
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