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Last change
on this file was 9af201e, checked in by MBK <marija.karapandzova@…>, 12 days ago |
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Fix frontend appearance
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-
Property mode
set to
100644
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File size:
341 bytes
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| 1 | 'use strict';
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| 2 | var tryToString = require('../internals/try-to-string');
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| 3 |
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| 4 | var $TypeError = TypeError;
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| 5 |
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| 6 | // Perform ? RequireInternalSlot(M, [[WeakSetData]])
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| 7 | module.exports = function (it) {
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| 8 | if (typeof it == 'object' && 'has' in it && 'add' in it && 'delete' in it) return it;
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| 9 | throw new $TypeError(tryToString(it) + ' is not a weakset');
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| 10 | };
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