Scripting Guide - SAS

64 Scripting Tools Chapter 4
Debug Scripts
Using Breakpoints and Watching Global Variables
The following example shows how to set a breakpoint in a loop and watch variables change through each
iteration of the loop.
1. Open the string.jsl sample script and click the Debug Script button.
2. Click in the margin for line 12 to add a breakpoint (Figure 4.10).
You should have a breakpoint for the following expression inside the For() loop:
stringFunction(i);
Figure 4.10 Set the Breakpoint
3. Click Run.
The first two expressions are evaluated:
– stringFunction is defined as a function.
– str is defined as an empty string.
Both variables and their types and values have been added to the Globals list. In addition, the For()
loop has been evaluated up to the line with the breakpoint, shown in Figure .
– i has been assigned to 0.
– i and its value and type have been added to the Globals list.
– i has been determined to be less than or equal to 9.
– stringFunction() has not yet been called.
Figure 4.11 View the Initial Global Variables