An input validation loop is sometimes called an error handler.

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An input validation loop is a section of code that checks input values to ensure they are within the expected range or format before allowing the program to continue. If an error is detected, the loop will prompt the user to re-enter the value or display an error message. This is sometimes referred to as an error handler, as it helps prevent unexpected errors or bugs in the program.

An Input Validation Loop Is Sometimes Called an Error Handler