[dropdown] Fix a sizer element being created every time dropdown is initialized #1496
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Description
This PR ensures that a dropdown has only one sizer element no matter how many times it is initialized.
It looks like
!module.has.sizer()
of this line already ensures it, but actually does not.$sizer.length > 0
insidehas.sizer()
always returnsfalse
becausesizer.selector
is> input.sizer
even though the sizer element is created asspan
element (I think> span.sizer
is needed instead of> input.sizer
).I'm not 100% sure whether this is a bug, so feel free to close this PR if anything is wrong.
Testcase
Both test cases initialize the dropdown twice.
Try to see how many sizer elements are created via your developer tool.
Broken
https://jsfiddle.net/c5oz8fhk/
Fixed
https://jsfiddle.net/yz8ptx21/
Closes
no-issue