IN operators

IN operators are used in conditions (if, Repeat and While loops)

IN needs an ordinal variable data type

• Integer

• Char

Integers do not need quotes.

Char data types need quotes.

For consecutive values the range can be indicated using two DOTS. [5..10] or ['A'..'D'].

For non-consecutive values the values need to be separated with commas. [1,7,9] or ['A','E','I','O','U',' ']

The IN is often used with a NOT as it is easier to test for example, if a variable is not a value from A-Z than to try to test if the value is a number or any of the millions of special characters. Important when using a NOT is that there are brackets around the whole condition after the NOT.

It is important to know how to store a char data type. If the variable was stored as a char but you use the uppercase function, instead of the upcase function, you will get an error since you changed the data type to a string.