core :: SequenceRead :: get_or_default
default
if the index
is invalid.var a = [10,20,30]
assert a.get_or_default(1, -1) == 20
assert a.get_or_default(3, -1) == -1
assert a.get_or_default(-1, -1) == -1
assert a.get_or_default(-10, -1) == -1
# Try to get an element, return `default` if the `index` is invalid.
#
# ~~~
# var a = [10,20,30]
# assert a.get_or_default(1, -1) == 20
# assert a.get_or_default(3, -1) == -1
# assert a.get_or_default(-1, -1) == -1
# assert a.get_or_default(-10, -1) == -1
# ~~~
fun get_or_default(index: Int, default: E): E
do
if index >= 0 and index < length then return self[index]
return default
end
lib/core/collection/abstract_collection.nit:917,2--930,4