How to add e-search widget to a JSAPI 4.3 web map?

[DeanThompson]

 I saw a e-search widget in WAB for developers and was wondering how do I incorporate it in my JSAPI 4.3 web map.

P.S I am doing all this for the first time.

[RobertScheitlin__GISP]

Dean,

   The eSearch widget is dependent on many core WAB library files and thus is not able to be used in a vanilla JS app.