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How to check whether particular UIViewController exists or not in app/project

I am working on a bigger project and I just want to check whether a particular UIViewController exists or not inside my Project.

Is there any way to get array of all UIViewController or any way to check if a particular UIViewController Class exists or not?

Please respond asap and thanks a lot.

In XCode, search in project using Command + Shift + F , and search for

UIViewController { or UIViewController{

Will give you a list of all the View Controllers

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