main
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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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File size:
338 bytes
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| [d565449] | 1 | 'use strict';
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| 2 |
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| 3 | // TODO: semver-major: remove
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| 4 |
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| 5 | var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
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| 6 |
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| 7 | module.exports = function isStringOrHole(item, index, arr) {
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| 8 | return typeof item === 'string' || (canDistinguishSparseFromUndefined ? !(index in arr) : typeof item === 'undefined');
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| 9 | };
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