Removes the elements of a list for which a criterion is True (complement of Select)
Discard[data, crit]
Discard[data, crit -> prop]
Discard[data, crit, n]
Discard[crit]
Discard[{1, 2, 4, 7, 6, 2}, EvenQ]
→ {1, 7}Discard[EvenQ][{1, 2, 4, 7, 6, 2}]
→ {1, 7}Discard[{1, 2, 4, 7, 6, 2}, OddQ, 1]
→ {2, 4, 7, 6, 2}