You can log messages at several different points in a Flex application’s life cycle. You can log messages when you
compile the application, when you deploy it to a web application server, or when a client runs it. You can log
messages on the server or on the client. These messages are useful for informational, diagnostic, and debugging
activities.
Flex includes the following logging mechanisms that you use when working with Flex applications.
Client-side loggingWhen you use the debugger version of Flash Player or start your AIR application using AIR
Debug Launcher, you can ...
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