swift make reference to uibar back button code example

Example 1: add navigation bar button swiftui

.navigationBarItems(
    leading: Button(action: {
        // Actions
    }, label: { Text("Button") }),

    trailing: Button(action: {
    // Actions
    }, label: { Image("Icon") })
)

Example 2: remove back button from navigation bar swift

self.navigationItem.leftBarButtonItem = nil;