Eas is case-sensitive.
Identifiers, such as variable and function names,
always need to be written exactly as defined,
lowercase and uppercase letters cannot be exchanged.
Pascal, for example, is a case-
insensitive language.
In Pascal, "myVar" equals "myvar", "MYVAR" and so on.
In case-sensitive languages such as C, PHP, JS and Eas,
"myVar" is one name for one thing, while
"myvar" is a
different name for another thing.