-= Assignment Operator

The -= assignment operator decrements a variable by a numeric expression.

Syntax

var -= num.exp

Example(s)

Subtracts 1 from the variable, x and assigns the result to x.

x -= 1

This statement:

total -= tax

is equivalent to the statement:

total = total - tax

See Also

* Arithmetic Operator, *= Assignment Operator, + Arithmetic Operator, += Assignment Operator, - Arithmetic Operator, /= Assignment Operator, := Assignment Operator, Arithmetic Expressions, Arithmetic Operators, Assignment, Numeric Expressions, Precedence, precision Statement, Relational Operators, sum() Function, \= Assignment Operator