$
sign symbol.
The script shows the variable type can be changed while program executes.
|
|
---|
.
) operator.
There are two string operators: the string concatenation operation (‘.’) and the concatenating assignment operator (‘.=’).
The script shows variables do not need to be strings.
They could be integer or real numbers or others.
|
$x = |
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a-Z
, 0-9
, and _
).
$my_string
or with capitalization such as $myString
.
Did you ever walk in a room and forget why you walked in? I think that’s how dogs spend their lives. — Sue Murphy |