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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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File size:
588 bytes
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[d565449] | 1 | 'use strict';
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| 2 |
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| 3 | var $defineProperty = require('es-define-property');
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| 4 |
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| 5 | var hasPropertyDescriptors = function hasPropertyDescriptors() {
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| 6 | return !!$defineProperty;
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| 7 | };
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| 8 |
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| 9 | hasPropertyDescriptors.hasArrayLengthDefineBug = function hasArrayLengthDefineBug() {
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| 10 | // node v0.6 has a bug where array lengths can be Set but not Defined
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| 11 | if (!$defineProperty) {
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| 12 | return null;
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| 13 | }
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| 14 | try {
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| 15 | return $defineProperty([], 'length', { value: 1 }).length !== 1;
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| 16 | } catch (e) {
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| 17 | // In Firefox 4-22, defining length on an array throws an exception.
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| 18 | return true;
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| 19 | }
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| 20 | };
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| 21 |
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| 22 | module.exports = hasPropertyDescriptors;
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