• ← Alternatives
• → HoldPattern

Except

WMA link

Except[c]

represents a pattern object that matches any expression except those matching c.

Except[c, p]

represents a pattern object that matches p but not c.

• • Cases[{x, a, b, x, c}, Except[x]]

• • Cases[{a, 0, b, 1, c, 2, 3}, Except[1, _Integer]]

Except can also be used for string expressions:

• • StringReplace["Hello world!", Except[LetterCharacter] -> ""]