Empty string

Empty string is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

Some languages have syntax or semantics for dealing specifically with empty strings.

Task

The task is to:

• Demonstrate how to assign an empty string to a variable.
• Demonstrate how to check that a string is empty
• Demonstrate how to check that a string is not empty.