IfElse (IfElse v0.1.0)
Functions providing conditional logic.
Interactive Elixir (1.14.0) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> import IfElse
IfElse
iex(2)> is_empty?("")
true
iex(3)> empty_else("foo", "bar")
"foo"
iex(4)> empty_else("", "bar")
"bar"
iex(5)> empty_else("", fn -> "bar" end)
"bar"
iex(6)> coalesce([false, nil, "true", false])
"true"
iex(7)> put_if(%{one: %{two: :three}}, :four, [:one, :two])
%{one: %{two: :four}}
iex(8)> put_if(%{one: %{two: :three}}, nil, [:one, :two])
%{one: %{two: :three}}
Link to this section Summary
Functions
Call the two argument function
with arg1
and arg2
if arg2
is truthy.
Return the first truthy element in the list, otherwise return nil.
If the value
is nil
or an empty string, return the else_value
.
Otherwise, return the value.
Check for empty strings, where empty is nil
or ""
.
If value
is truthy, put it in the structure at path
and return the updated
structure. Otherwise return the structure unchanged.
Link to this section Functions
call_if(arg1, arg2, function)
@spec call_if( arg1 :: any(), arg2 :: nil | false | any(), function :: (any(), any() -> any()) ) :: any()
Call the two argument function
with arg1
and arg2
if arg2
is truthy.
coalesce(list)
Return the first truthy element in the list, otherwise return nil.
empty_else(value, else_value)
If the value
is nil
or an empty string, return the else_value
.
Otherwise, return the value.
If else_value
is a function, it is called.
is_empty?(arg1)
@spec is_empty?(nil | String.t()) :: true | false
Check for empty strings, where empty is nil
or ""
.
put_if(structure, value, path)
If value
is truthy, put it in the structure at path
and return the updated
structure. Otherwise return the structure unchanged.