JAVASCRIPT VARIABLES

Define Variables

A variable is a "container" for information you want to store. A variable's value can change during the script. You can refer to a variable by name to see its value or to change its value.

Rules for Variable names:

• Variable names are case sensitive
• They must begin with a letter or the underscore character

How to declare a Variable?

You can create a variable with the var statement:

var strname = some value

You can also create a variable without the var statement:

strname = some value

How to Assign a Value to a Variable?

You assign a value to a variable like this:

var strname = "Cap"

Or like this:

strname = "Cap"

The variable name is on the left side of the expression and the value you want to assign to the variable is on the right. Now the variable "strname" has the value "Hege".