# Operator_Subtract

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Global Method

**Operator_Subtract**(rightHandSide As Type)

Supported for all project types and targets.

Used to overload the - operator when used for subtraction, providing custom functionality.

Global Method

**Operator_Subtract**()

**As**Type

Supported for all project types and targets.

Used to overload the - operator when used for subtraction, providing custom functionality.

## Notes

Create an **Operator_Subtract **function in a class to specify the functionality of the - operator for that class.

In the function, the Self instance is the left operand and the other operand is passed as a parameter.

## Sample Code

Suppose you have a class, Vector, that can store a vector. To define the - operator for this class, create a method of the Vector class called **Operator_Subtract**.

The Vector class has two integer properties, x and y.

**Operator_Subtract** is defined as:

Function Operator_Subtract(rhs As Vector) As Vector

// rhs stands for right-hand-side, the vector to be subtracted from Self

Var ret As New Vector // the difference between the two vectors

ret.x = Self.x - rhs.x

ret.y = Self.y - rhs.y

Return ret

End Function

// rhs stands for right-hand-side, the vector to be subtracted from Self

Var ret As New Vector // the difference between the two vectors

ret.x = Self.x - rhs.x

ret.y = Self.y - rhs.y

Return ret

End Function

## See Also

- operator, Operator_SubtractRight function.