Unary Negation : Arithmetic operator « Operators « JavaScript Tutorial

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JavaScript Tutorial » Operators » Arithmetic operator

2. 1. 14. Unary Negation

If the value is a string, an attempt is made to convert the string to a number.


<html>

    <script language="JavaScript">

    <!--

    aString = new String("36");

    answer = -aString;

    document.write("answer = -aString<br>");

    document.write("answer = ",answer);

    -->

    </script>

    </html>

2. 1. Arithmetic operator
	2. 1. 1.	Compound assignment operators
	2. 1. 2.	Arithmetic Operators (+)
	2. 1. 3.	Append two strings together
	2. 1. 4.	Add string and integer together
	2. 1. 5.	+ (Addition) with data type conversion
	2. 1. 6.	+= (Addition Assignment)
	2. 1. 7.	Subtraction (-)
	2. 1. 8.	Multiplication (*)
	2. 1. 9.	*= (Multiplication Assignment)
	2. 1. 10.	Division (/)
	2. 1. 11.	Working With JavaScript Divide Operators
	2. 1. 12.	/= (Division Assignment)
	2. 1. 13.	Arithmetic operator in action
	2. 1. 14.	Unary Negation
	2. 1. 15.	String and addition operator (+)

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