To create a new variable, you just need to determine the variable name & value. The value will determine the variable type and you can change the value to switch between the types using the same variable name.
<Variable Name> = <Value>
The operator '=' is used here as an Assignment operator and the same operator can be used in conditions, but for testing equality of expressions.
The Variable will contains the real value (not a reference). This means that once you change the variable value, the old value will be removed from memory (even if the variable contains a list or object).
Dragon is a dynamic programming language that uses `Dynamic Typing <http://en.wikipedia.org/wiki/Type_system>`_.
x = "Hello" // x is a string showln x x = 5 // x is a number (int) showln x x = 1.2 // x is a number (double) showln x x = [1,2,3,4] // x is a list showln x // print list items
We can use the assignment operator '=' to copy variables. We can do that to copy values like strings & numbers. Also, we can copy complete lists & objects. The assignment operator will do a complete duplication for us. This operation called `Deep Copy <http://en.wikipedia.org/wiki/Object_copy#Deep_copy>`_
list = [1,2,3,"four","five"] list2 = list list =  show list // print the first list - no items to print showln "********" show list2 // print the second list - contains 5 items
Dragon is a `weakly typed language <http://en.wikipedia.org/wiki/Strong_and_weak_typing>`_, this means that the language can automatically convert between data types (like string & numbers) when that conversion make sense.