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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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100644
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File size:
567 bytes
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1 | 'use strict';
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2 |
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3 | var numToStr = Number.prototype.toString;
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4 | var tryNumberObject = function tryNumberObject(value) {
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5 | try {
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6 | numToStr.call(value);
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7 | return true;
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8 | } catch (e) {
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9 | return false;
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10 | }
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11 | };
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12 | var toStr = Object.prototype.toString;
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13 | var numClass = '[object Number]';
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14 | var hasToStringTag = require('has-tostringtag/shams')();
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15 |
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16 | module.exports = function isNumberObject(value) {
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17 | if (typeof value === 'number') {
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18 | return true;
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19 | }
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20 | if (typeof value !== 'object') {
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21 | return false;
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22 | }
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23 | return hasToStringTag ? tryNumberObject(value) : toStr.call(value) === numClass;
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24 | };
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