Space Station Hal 9000

Thank you for fixing the space stations heating

Variables are used to store data, either numericaly or as a string (text) for recall when required in the code you are scripting.
Once a variable is set unless you declare another variable it can be used as many time as you need within a webpage.

Alien in flying saucer Alien in flying saucer
HOMEPAGE LOOPS FUNCTIONS STATEMENTS OBJECTS ARRAYS EVENT HANDERS USE OF JAVASCRIPTS IN FORMS