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Last change
on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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| 1 | /*!
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| 2 | * is-number <https://github.com/jonschlinkert/is-number>
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| 3 | *
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| 4 | * Copyright (c) 2014-2015, Jon Schlinkert.
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| 5 | * Licensed under the MIT License.
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| 6 | */
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| 7 |
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| 8 | 'use strict';
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| 9 |
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| 10 | var typeOf = require('kind-of');
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| 11 |
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| 12 | module.exports = function isNumber(num) {
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| 13 | var type = typeOf(num);
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| 14 |
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| 15 | if (type === 'string') {
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| 16 | if (!num.trim()) return false;
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| 17 | } else if (type !== 'number') {
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| 18 | return false;
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| 19 | }
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| 20 |
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| 21 | return (num - num + 1) >= 0;
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| 22 | };
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