What types of operators do you know in Expression Language (EL)?

Arithmetic operators:

• + (addition)
• - (subtraction)
• * (multiplication)
• / (division)
• % (modulus)

Comparison operators:

• == or eq (equal)
• != or ne (not equal)
• < or lt (less than)
• > or gt (greater than)
• <= or le (less than or equal to)
• >= or ge (greater than or equal to)

Logical operators:

• && or and (logical AND)
• || or or (logical OR)
• ! or not (logical NOT)

Conditional (ternary) operator:

• ? : (test ? value if true : value if false)

Property access operator:

• . (access to object property)
• [] (access to array or collection element)

Assignment operator:

• = (assigning a value to a variable in EL 3.0+ context)

Empty check operator:

• empty (checks if a variable is null or an empty array/collection/string)