In programming, we use variables all the time.
We have already used variables before.
In this example given above, name is a variable.
We are assigning the value of
John Smith to the variable name.
intro is also a variable
to which a value is being assigned.
Variables can be re-used
and
the values can be reassigned.
In this case given above,
we are using the same
variable name,
but we changed its value
three times.