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Icon+Unicon/Intro: Difference between revisions
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=== Data Types ===
==== &null ====
&null is unique. It is a data type with only a single value, one instance only. While this may sound odd at first, &null is at the core of Icon/Unicon and contributes to the power and robustness of the language. Specifically, &null arose to overcome a short coming that any [[SNOBOL4]] programmer will be familiar with. Consider the following SNOBOL code:
<lang Snobol> numb1 = 2
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