Wolfram Language & System 10.3 (2015)|Legacy Documentation

This is documentation for an earlier version of the Wolfram Language.View current documentation (Version 11.2)


represents an element of a list or association that will automatically be removed.

gives Nothing.


  • In an association, entries of the form key->Nothing are removed. Entries of the form key:>Nothing are not removed.
  • Nothing is removed as part of the standard evaluation process. It is not removed in expressions that are held or inactive.
Introduced in 2015