fix: vertical-scrolling to be out of sync (visjs#834)

* Update Core.js

Fixed flickering when scrolling at the end of the timeline, fixes visjs#422

* Alternative fix for visjs#238

Co-authored-by: Yotam Berkowitz <[email protected]>

fix(deps): add XSS among peer dependencies (visjs#843)

* fix(deps): add XSS among peer dependencies

* fix(build): add missing global name for <script/> imports

Co-authored-by: Yotam Berkowitz <[email protected]>

fix: xss security (visjs#840)

fix: add template functions can return HTMLElement (visjs#836)

In my own use case, I'm trying to attach a Vue component containing an image. Some properties are computed against `scrollHeight` of this image, and this is 0 if the element is not attached to the DOM.

So returning `outerHTML` is not the same thing as returning the element itself.

fix: purge instanceof Array from the codebase (visjs#750)

Array.isArray works with arrays that came from other contexts like web
workers, instanceof Array wouldn't consider such array to be an array
even though it is perfectly valid array.

fix(timeline.setgroups): nested groups fold correcly when input is ar…

…ray (visjs#718)

* fix(timeline.setgroups): nested groups fold correcly when input is array

Fixes visjs#113

* chore(examples.nestedgroups): add example to demonstrate fix of visjs#203

* chore(examples.nestedgroups): revert prev

This reverts commit 1a8fd7e.

Please squash this.

Co-authored-by: Yotam Berkowitz <[email protected]>

feat(data): allow custom DataSet/View implementations (visjs#729)

This tests that the methods and properties are implemented instead of
checking the prototype. Thanks to this it is now possible to use a
different DataSet or DataView without extending the Vis one. This also
removes some interoperability issues of the standalone build when used
toghether with other Vis family libraries.

fix: format options object so its unique within a TimeAxis instance (v…

…isjs#723)

fix(util.typecoercedataset): restore timeline.itemsData.clear accessor (

visjs#716)

* fix(util.typecoercedataset): restore timeline.itemsData.clear accessor

This bug was introduced in visjs#259 , and constituted a breaking change.

This commit should fix visjs#715.

* revert "fix(util.typecoercedataset): restore timeline.itemsData.clear accessor"

This reverts commit ba888c7.

fix(util.convert): epoch times stored as strings convert correctly, u…

…nit test fixup, parse iso dates in local tz (visjs#699)

* fix: parse string dates directly with moment

* fix: error for convert unknown to moment more specific

Previously stated "Unable to convert to Date"

Now states "Unable to convert to moment"

* test: add html doc for testing offset behaviour

* test: test string to date conversions more rigorously

* refactor(utils.convert): remove repeated code, throw TypeErrors

Previously, "Date" & "Moment" had identical switch branches, but
each return statement in "Date" had `moment(...).toDate()`.

Now, Date branch is just `convert(object, "Moment").toDate()`.

Also, each now throw TypeErrors, & Date branch catches "TypeError" & rethrows
its own.

* test(util.convert): test for "TypeError" when testing throws

* test(util.convert): more robust output checking for date conversion

* fix(util.convert): convert epoch times in strings to number before converting to moment

* test(util.convert): improve "testOffset" example

* Delete testOffset.html

as per review comment

Co-authored-by: Yotam Berkowitz <[email protected]>