Local variables pre-initializing

Best practices

Whenever a code snippet calculates values of one or several local variables, we recommend that you preliminary initialize such variables. This way you can avoid potential execution time errors when a variable value is Undefined, and the code expects a particular vaue type. For example:

If Value Then
      MyVariable = 10;
ElseIf
      // A sequence of subsequent branches
      …
EndIf;
... = MyVariable;  // If Value is not TRUE, note that MyVariable can be Undefined

Correct:

MyVariable = 0; // default value
If Value Then
      MyVariable = 10;
ElseIf
      // A sequence of subsequent branches
      …
EndIf;

... = MyVariable;  // Using a variable value that is always numerical.

This recommendation applies to large blocks If/ElseIf/Else, in which it is difficult to control variable initialization.