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VBScript - The Operators

Operators are symbols used to manipulate variables, that is to say, perform operations, evaluate, compare ...

These operators can mathematically change the value of a variable:

Operator	Name	Effect	Example	Result (x = 7)
+	Addition operator	Add two value	x+3	10
-	Subtraction operator	Subtraction two values	x-3	4
-	Negation operator	Used with a single operand, it reverses the sign of the variable	-x	-7
*	Multiplication operator	Multiplies two values	x*3	21
/	Division operator	Divides two values	x/3	2.3333333
=	Assignment operato	assigns a value to a variable	x=3	Assign the value 3 to the variable x
^	power operator	raise the variable to the specified power x	x^2	49
Mod	modulo operator	Returns the remainder of division of the left operand to the right of x	x Mod 2	1

Operator	Name	Effect	Example	Result
=	equality operator	Compares two values ??and check their equality	x=3	Returns true if X is equal to 3 or false in the other case.
<	Relational operator (is smaller than)	Checks if a variable is less than a value	x<3	Returns true if X is less to 3 or false in the other case.
<=	Relational operator (is smaller than or equal)	Checks if a variable is less than or equal to a value	x<=3	Returns true if X is less or equal to 3 or false in the other case.
>	Relational operator (is greater than)	Checks if a variable is greater than a value	x>3	Returns true if X is greater to 3 or false in the other case.
>=	Relational operator (is greater than or equal)	Checks if a variable is greater than or equal to a value	x>=3	Returns true if X is greater or equal to 3 or false in the other case.
<>	Relational operator (is not)	Checks if variable is different from a value	x<>3	Returns true if X is different from 3.
Is	Comparaison operator	Compares two expressions	expression1 Is expression2	Returns true if the result of the left operand is the same as the one to the right

This type of operator allows you to check if one or more conditions are true:

Opérateur	Dénomination	Effet	Syntaxe
Or	Or	Check whether one of the conditions is achieved	((condition1)Or(condition2))
And	AND	Verifies that all conditions are met	((condition1)And(condition2))
Xor	Inverse or	Make the inverse of the OR	((condition1)Xor(condition2))
Eqv	Equivalence	Performs an equivalence between two conditions	((condition1)Eqv(condition2))
Imp	Implication	Checks a logical implication between two conditions	((condition1)Imp(condition2))