Given a comma-separated list and a member, check to see if the member is in the list. An optional transformation function can be passed in to apply to the items in the list.

Examples

iex> in_list?("a,B,c,D", "b", &String.downcase/1)
true

iex> in_list?("a,B,c,D", "b")
false

Given an ID and group ID, normalize them using a Murmur hash. Used in all strategies that provide "stickiness".

See the gradualRolloutUserId strategy.

@spec parse_int(x :: String.t()) :: non_neg_integer()

Parse a string to a non-negative integer, returning only the number or 0 if it isn't just a number.

Examples

iex> parse_int("5")
5

iex> parse_int("5ab23a")
0

iex> parse_int(5)
5