I am using Angular signals to get a list During the initial load, because there are two nested objects, it gives me an error and it is completely logical. When I use nullish Collection Operators, the code side gives me an error and my code encounters a problem and does not run. If I do not use it, the program console is full of errors I do not know what solution to use This picture is for when I use the sign (?) for initial null: and this: This picture is also for when I do not use the symbol (?) for null and everything runs correctly and even the dropdown is filled correctly, but when initializing the customerId which is empty, it gives an error in the console I do not know what solution to use to resolve these errors. Continue reading...
