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do(expression1, expression2[,..., expressionN])

Note that if a break() or continue() function is used within the do() then the do() function returns immediately and since it has not reached the last expression in the list a _NULL value will be returned.

Examples

do(
   //evaluate an expression
   $number = 1,
   
   //and then evaluate another expression
   $word = "Word"
)

This whole do() block evaluates to the value of the last expression: "Word"

Note that $number and $word are still available after the do() statement has been concluded.

do( 
   $difference = crm.total - billing.total, 
   
   if( $difference != 0, 
      addElement( $errors, "difference in totals") 
   ),
 
   $difference
)

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