working with react-native, How can we execute javascript function at native level in IOS? [closed]

Question: Hi ! I want to execute a Javascript function at native level in IOS. I achieved the same in android by exposing the javascript function to the Java and then used that function in android by using react Instance manager, reactnative host, reactcontext and catalyst instance. I tried to research for a way I could achieve the same in IOS. Any, link or guidance will be helpful.