Handling errors
Flash Player 9 and later, Adobe AIR 1.0 and
later
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To “handle” an error means that you build logic into your application
to respond to, or fix, an error. Errors are generated either when
an application is compiled or when a compiled application is running.
When your application handles errors,
something
occurs as
a response when the error is encountered, as opposed to no response
(when whatever process created the error fails silently). Used correctly, error
handling helps shield your application and its users from otherwise unexpected
behavior.
However, error handling is a broad category that includes responding
to many kinds of errors that are thrown during compilation or while
an application is running. This discussion focuses on how to handle
run-time errors (thrown while an application is running), the different
types of errors that can be generated, and the advantages of the
error-handling system in ActionScript 3.0.
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