Here are a few commonly used JSP EL examples that you can
use in your Correspondence Management solution:
To add two numbers:
${number1 + number2}
To concatenate two strings:
${str1} ${str2}
To compare two numbers:
${age < 18}
You can find more information in the JSP EL specification. The client-side expression
manager does not support certain variables and functions in the
JSP EL specification, specifically:
Collection indexes
and map keys (using the [] notation) are not supported in variable
names for expressions evaluated on the client-side.
Complex types are currently not supported as parameter types
or return types of functions used in expressions. The only allowed
types are: