This is blatantly taken from HI as this I think is useful enough to re-post nearly verbatim.

If you've ever needed to know which Client Scripts, UI Policies, and UI Actions are loading onto the page when you view a form or Service Catalog item in Service Portal, the information is readily available if
your know where to look.

If you are using the out-of-box "SC Catalog Item" and "Form" widgets, you can find this information in the widgets scope.

To view the widgets scope, hold down the CTRL key and right-click anywhere in the widget. Choose "Log to console: $scope". Open your browser developer tools to the JavaScript console. Expand the "Object"
that has been dumped to the console.

"Form" widget

Client Scripts are located at

data.f.client_script

UI Policies are located at

data.f.policy

UI Actions are located at

data.f._ui_actions

"SC Catalog Item" widget

Client Scripts are located at

data.sc_cat_item.client_script

UI Policies are located at

data.sc_cat_item.policy