Addition Operator (+)

Microsoft Office JScript

previous page next page
Microsoft® JScript® + Operator  Language Reference 
Version 1 

See Also

Description
Used to sum two numbers or perform string concatenation.
Syntax
result = expression1 + expression2

The + operator syntax has these parts:

Part Description
result Any variable.
expression1 Any expression.
expression2 Any expression.

Remarks
The underlying subtype of the expressions determines the behavior of the + operator.

If Then
Both expressions are numeric or Boolean Add.
Both expressions are strings Concatenate.
One expression is numeric and the other is a string Concatenate.

For information on when a run-time error is generated by the + operator, see the Operator Behavior table.

previous page start next page