• ← Listable
• → NHoldAll

Locked

WMA link

Locked

is an attribute that prevents attributes on a symbol from being modified.

The attributes of Locked symbols cannot be modified:

• • Attributes[lock] = {Flat, Locked};

• • SetAttributes[lock, {}]

• • ClearAttributes[lock, Flat]

• • Attributes[lock] = {}

• • Attributes[lock]

However, their values might be modified (as long as they are not Protected too):

• • lock = 3