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.

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