Deprecated method in jQuery 3.3.*

[ddrozdik]

Here is a changelog https://blog.jquery.com/2018/01/19/jquery-3-3-0-a-fragrant-bouquet-of-deprecations-and-is-that-a-new-feature/ which says methods

• $.isWindow()
• $.isFunction()
• $.type()

are deprecated in jQuery 3.3 and it's recommended to stop using them. Most of these will be removed in jQuery 4.0