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 Code Block Manipulation
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 Reference Item| Description
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 AEVAL()       | Execute a code block for each element in an array
 ASCAN()       | Scan an array for a value or until a block returns true
 DBEVAL()      | Evaluate a code block for each record
 ERRORBLOCK()  | Post a code block to execute when a runtime error occurs
 EVAL()        | Evaluate a code block
 FIELDBLOCK()  | Return a set-get code block for a field variable
 FIELDWBLOCK() | Return a set-get block for a field in a given workarea
 MEMVARBLOCK() | Return a set-get code block for a given memory variable
 SETKEY()      | Assign an action block to a key
 TYPE()        | Determine the type of an expression
 VALTYPE()     | Determine the data type returned by an expression
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