JScript  

Expected ':'

You attempted to create an expression using the ternary conditional operator, but did not include the colon between the second and third operands. The ternary (three operands) conditional operator requires a colon between the second (true) and third (false) operands.

To correct this error

Insert a colon between the second and third operands.

See Also

Conditional (Ternary) Operator (?:) | JScript Operators