Controlling the type of data a function returns involves specifying the return type and ensuring that the returned value matches this type. In statically typed languages like C++, Java, or TypeScript, you declare the return type in the function signature. For example, in C++:
int myFunction() {...}
where ‘int’ is the return type.
In dynamically typed languages like Python or JavaScript, there’s no explicit declaration. However, you can control the return type by ensuring the function always returns a specific type. For instance, if you want to ensure your function returns an integer, you could use type conversion functions such as int() in Python or Number() in JavaScript.
For complex types, consider using classes (OOP) or interfaces (TypeScript). These allow you to define custom types with specific properties and methods, which can be used as return types for your functions.
