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Exception Handling
WebScript supports exception handling in a fashion very similar to that of Objective-C. An exception is a special condition that interrupts the normal flow of program execution. Each application can interrupt the program for different reasons. For example, one application might interpret saving a file in a directory that's write-protected as an exception. In this sense, the exception is equivalent to an error. Another application might interpret the user's input as an exception, perhaps as an indication that a long-running process should be aborted.
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