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| author | Martijn Cuppens <[email protected]> | 2020-03-09 16:21:04 +0100 |
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| committer | GitHub <[email protected]> | 2020-03-09 17:21:04 +0200 |
| commit | 7d8c7c4ba844f3e70b7cda20a5b813b54e43959d (patch) | |
| tree | 92866d65495021a2c1aa32e2ddf9da19af3bea0f /js/src/button.js | |
| parent | 14c4a601fe09cf6f711dffbb9240c4c8abc25767 (diff) | |
| download | bootstrap-7d8c7c4ba844f3e70b7cda20a5b813b54e43959d.tar.xz bootstrap-7d8c7c4ba844f3e70b7cda20a5b813b54e43959d.zip | |
`prev()` function fails when non-element nodes are present (#30117)
The `prev()` function doesn't take nodes other than elements into account. Also we could simplify things a lot using the `previousElementSibling` property. This property isn't fully supported in IE, it only works for elements, but since the `element` variable is an element, we can safely use it here.
I've also added an additional test.
I don't think we had this issue in v4, since we relied on jQuery back then.
Ref. https://developer.mozilla.org/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
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