Adobe 23101335 - Photoshop - PC Manual page 24

Scripting basics
2
Testing and troubleshooting
You can display the contents of one or more variables in the log window by using the log
command.
log {myVariable, otherVariable}
In addition, the Result window (choose Controls > Show Result) will display the value from
the last script statement evaluated. Third-party editors offer additional debugging features
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Photoshop 7.0 Scripting Guide