Dollar-print syntax
The dollar-print syntax is the following:
$indentifier
It checks if identifier exists, and if so, it prits it. Otherwise, it prints $identifier.
If no identifier is given, it prints $.
The dollar-print syntax is the following:
$indentifier
It checks if identifier exists, and if so, it prits it. Otherwise, it prints $identifier.
If no identifier is given, it prints $.
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