JS-Variable
< Beginner JS >< Function >< Variable > < Loop-If > < OOP > 1/ Variable <script> var FName=FirstName </script> Declaring a variable var FirstName var Adress,Phone,Email; You can declare: Natural numbers: Integer Decimal numbers: Double String: Text Assigning a value to a variable Salary=12 or var Salary=12 Display the value Document.write(Salary) Addition/Substraction/Multiplication/Division Document.write(125+40) Document.write(Salary+50) Negative Temp=-31 Function and local variables Variable declared in a body of a function ....{var custAdress}... Use Declared variable function showAdress(){ var custAdress custAdress="12 Hello" document.write(custAdress); } showAdress();