ERNS

Erases all unburied variables from the workspace. ERNS abbreviates ERASE NAMES.

It is possible to erase variables which shadow another variable through dynamic scoping. In this case, the variable remains erased until it would have gone out of scope, at which time the shadowed variable reappears in the workspace with its former value.

MAKE "foo 1
MAKE "bar 2
PONS
Make "bar 2
Make "foo 1
ERNS
PONS