Variables js scope in cakephp 3.x -

In CakeProx 3.x, I want to declare js vars in a single view in a custom script, and to this var Call external js loaded in a single view

This is my visual code:

   html-> Script ('edit'); ? & Gt; & Lt; Script type = "text / javascript" & gt; Var my_var = 'try'; & Lt; / Script & gt;  

I also want to call my_var in edit.js

Announce the variable before joining JS.

  & lt; Script type = "text / javascript" & gt; Var my_var = 'try'; & Lt; / Script & gt; & Lt ;? Php echo $ this- & gt; Html-> Script ('edit'); ? & Gt;