main
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Last change
on this file since 79a0317 was 79a0317, checked in by stefan toskovski <stefantoska84@…>, 3 days ago |
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F4 Finalna Verzija
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Property mode
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100644
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File size:
457 bytes
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| [d565449] | 1 | 'use strict';
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| 2 |
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| [79a0317] | 3 | var callBound = require('call-bound');
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| [d565449] | 4 |
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| 5 | var $deref = callBound('WeakRef.prototype.deref', true);
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| 6 |
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| [79a0317] | 7 | /** @type {import('.')} */
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| [d565449] | 8 | module.exports = typeof WeakRef === 'undefined'
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| [79a0317] | 9 | ? function isWeakRef(_value) { // eslint-disable-line no-unused-vars
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| [d565449] | 10 | return false;
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| 11 | }
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| 12 | : function isWeakRef(value) {
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| 13 | if (!value || typeof value !== 'object') {
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| 14 | return false;
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| 15 | }
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| 16 | try {
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| 17 | $deref(value);
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| 18 | return true;
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| 19 | } catch (e) {
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| 20 | return false;
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| 21 | }
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| 22 | };
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