How can a function be restricted to run only once in Avaloq Script?

How can a function be restricted to run only once in Avaloq Script?

• A. By defining it as a private function
• B. By using a return statement
• C. By utilizing a flag variable within the function
• D. By activating a case statement

Answer: (C)

In Avaloq Script, restricting a function to run only once can effectively be achieved by utilizing a flag variable within the function. This approach involves creating a variable that tracks whether the function has already been executed. When the function is invoked, it checks the status of this flag. If the flag indicates that the function has been run before, the function can skip executing its main logic, thereby preventing a second run. Using a flag variable allows for straightforward control over the execution flow of the function. It is a common programming pattern used to ensure that certain operations are performed only a single time during the lifespan of a program or a particular object or context. Other options may not fulfill the requirement for restricting a function’s execution. For instance, defining a function as private does not control its execution frequency; it merely restricts visibility to other parts of the code. A return statement is used to exit a function and provide a value back to the caller, but it does not inherently manage how many times the function can be called. Activating a case statement involves control flow based on conditions but does not serve the purpose of limiting function execution to a single instance.

In Avaloq Script, restricting a function to run only once can effectively be achieved by utilizing a flag variable within the function. This approach involves creating a variable that tracks whether the function has already been executed. When the function is invoked, it checks the status of this flag. If the flag indicates that the function has been run before, the function can skip executing its main logic, thereby preventing a second run.

Using a flag variable allows for straightforward control over the execution flow of the function. It is a common programming pattern used to ensure that certain operations are performed only a single time during the lifespan of a program or a particular object or context.

Other options may not fulfill the requirement for restricting a function’s execution. For instance, defining a function as private does not control its execution frequency; it merely restricts visibility to other parts of the code. A return statement is used to exit a function and provide a value back to the caller, but it does not inherently manage how many times the function can be called. Activating a case statement involves control flow based on conditions but does not serve the purpose of limiting function execution to a single instance.