+ Operator

Calculates the sum of two numbers or identifies a positive number.

Syntax

expression_1 + expression_2

+ expression_1

Parts

expression_1

In the binary construct, a numeric or string expression.

In the unary construct, a numeric expression.

expression_2

An expression of a type compatible with expression_1

Instructions

The binary operator + adds the values of two numeric expressions and returns their numeric sum.

If the two expressions are of type String, the result is a new string made by the concatenation of expression_1 and expression_2, in that sequence. It operates the same as the operator &, but + has higher precedence.

The unary operator + returns the numeric value of expression_1 without change. Thus, it is frequently known as the identity function in mathematics.

Examples

Var sum As Int32
sum = 5 + 1
sum = 2.0 + 4.0
sum = 2 + 2 + 2

All the above assignment statements give sum the value 6.

See also

• += Operator
• & Operator

Other elements that use this symbol

• Floating-point literals (1.0e+6, for example). See Real64 Data Type.
• Unit name plurals (for example, Unit meter+s metre+s m). See Units of Measure.