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Variables and Scope: a Summary

The following table summarizes the different types of variables in WebScript:

Variable Type	Where It's Declared	Where It's Visible	How Long It Lives
Local	Inside a method in either an application or a component script	Only inside the method in which it's declared	For the duration of the method
Component	Outside a method in a component script	Inside the script in which it's declared	For the duration of a component, which is determined by the application's page-cache size
Session	Outside a method in a session script	Component scripts can access session variables by sending accessor messages to the WOSession object. Every session has its own version of a session variable.	For the duration of the session
Application	Outside a method in an application script	In the application script. Component scripts can access application variables by sending accessor messages to the WOApplication object. Every session sees application variables with the same value.	For the duration of the application

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