https://getbootstrap.com/docs/4.0/components/dropdowns/
$().dropdown('dispose') Erases the dropdown functionality of an element.
What exactly does this mean? Does it remove the tag entirely? Does it render the tag unusable as a dropdown list? No! When this method is called, it actually has no effect at all! Can someone provide a clear example where this method actually works?
The documentation for Bootstrap is incredibly unhelpful.
When it comes to disposing, we ensure to clear our listener and variables. For more details, you can check out: https://github.com/twbs/bootstrap/blob/v4-dev/js/src/dropdown.js#L187
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