PassiveSupport.List (passive_support v0.8.4)
Functions for working with lists.
Link to this section Summary
Functions
Returns a copy of list with any nil values removed
Performs the provided function on every non-nil value while removing nil values.
If also_filter_result is passed, then any nil values that would be returned
from the function are not injected into the list.
Returns a new list of [item | list]
An antonym to hd.
Link to this section Functions
Link to this function
compact(list)
Specs
Returns a copy of list with any nil values removed
Examples
iex> compact([1,nil,3])
[1, 3]
iex> compact([false, nil, nil, "hi"])
[false, "hi"]
Link to this function
compact_map(list, fun, options \\ [])
Specs
Performs the provided function on every non-nil value while removing nil values.
If also_filter_result is passed, then any nil values that would be returned
from the function are not injected into the list.
Examples
iex> compact_map([1,2,nil,4], &(&1 * 2))
[2,4,8]
iex> compact_map([nil, " ", {}, 0], &PassiveSupport.Item.presence/1, also_filter_result: true)
[0]
iex> compact_map([nil, false, 0], &(&1), also_filter_result: true)
[false, 0]
Link to this function
cons(list, item)
Specs
Returns a new list of [item | list]
An antonym to hd.
Examples
iex> cons([2,3], 1)
[1,2,3]
iex> [2,3] |> cons(1) |> cons(0)
[0,1,2,3]