Using Caché ObjectScript - InterSystems Documentation

3.6 Boolean Values ......................................................................................................................... 20
3.7 Dates ......................................................................................................................................... 21
4 Variables ............................................................................................................................................ 23
4.1 Categories of Variables ............................................................................................................. 23
4.1.1 Local Variables ............................................................................................................... 23
4.1.2 Process-private Globals .................................................................................................. 25
4.1.3 Globals ........................................................................................................................... 26
4.1.4 Array Variables ............................................................................................................... 27
4.1.5 Special Variables ............................................................................................................ 27
4.1.6 Object Properties ............................................................................................................ 28
4.2 Variable Typing and Conversion ............................................................................................... 28
4.2.1 Object Values .................................................................................................................. 29
4.3 Variable Declaration and Scope ................................................................................................ 30
4.3.1 Using #Dim .................................................................................................................... 30
5 Operators and Expressions .............................................................................................................. 31
5.1 Introduction to Operators and Expressions .............................................................................. 31
5.1.1 Operator Precedence ...................................................................................................... 32
5.1.2 Expressions .................................................................................................................... 34
5.1.3 Assignment ..................................................................................................................... 35
5.1.4 String-to-Number Conversion ........................................................................................ 36
5.2 Arithmetic Operators ................................................................................................................ 36
5.2.1 Unary Positive Operator (+) ........................................................................................... 36
5.2.2 Unary Negative Operator (-) .......................................................................................... 37
5.2.3 Addition Operator (+) ..................................................................................................... 37
5.2.4 Subtraction Operator (-) ................................................................................................. 37
5.2.5 Multiplication Operator (*) ............................................................................................ 38
5.2.6 Division Operator (/) ...................................................................................................... 38
5.2.7 Exponentiation Operator (**) ........................................................................................ 39
5.2.8 Integer Divide Operator ( \ ) ........................................................................................... 40
5.2.9 Modulo Operator (#) ...................................................................................................... 40
5.3 Logical Comparison Operators ................................................................................................ 41
5.3.1 Unary Not ...................................................................................................................... 41
5.3.2 Precedence and Logical Operators ................................................................................. 41
5.3.3 Binary And .................................................................................................................... 41
5.3.4 Binary Or ....................................................................................................................... 43
5.4 String Operators ....................................................................................................................... 44
5.4.1 Binary Concatenate ....................................................................................................... 44
5.5 Numeric Relational Operators ................................................................................................. 45
5.5.1 Binary Less Than .......................................................................................................... 45
5.5.2 Binary Greater Than ...................................................................................................... 45
5.5.3 Greater Than or Equal To .............................................................................................. 45
5.5.4 Less Than or Equal To ................................................................................................... 46
5.6 String Relational Operators ...................................................................................................... 46
5.6.1 Binary Equals ................................................................................................................ 46
5.6.2 Binary Contains ............................................................................................................. 47
5.6.3 Binary Follows .............................................................................................................. 48
5.6.4 Binary Sorts After ......................................................................................................... 49
5.7 Pattern Matching ...................................................................................................................... 49
5.7.1 Specifying How Many Times a Pattern Can Occur ....................................................... 52
5.7.2 Specifying Multiple Patterns .......................................................................................... 53
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Using Caché ObjectScript