Unary Negation : Arithmetic operator « Operators « JavaScript Tutorial






  1. JavaScript Tutorial
  2. Operators
  3. Arithmetic operator

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 (+)