func v0.4.1 Func.Presence

Summary

Functions

blank?(val)

The opposite of present?

empty?(val)

Checks the value is empty

non_empty?(val)

The opposite of empty?

presence(val)

It returns the itself when the value is present, or returns nil

present?(val)

Checks the value is present

Functions

blank?(val)

The opposite of present?

iex> Func.Presence.blank?(nil)
true
iex> Func.Presence.blank?(false)
true
iex> Func.Presence.blank?("")
true
iex> Func.Presence.blank?(%{})
true
iex> Func.Presence.blank?([])
true
iex> Func.Presence.blank?(1)
false

empty?(val)

empty?(any) :: boolean

Checks the value is empty.

iex> Func.Presence.empty?([])
true
iex> Func.Presence.empty?(%{})
true
iex> Func.Presence.empty?("")
true
iex> Func.Presence.empty?(1)
false

non_empty?(val)

non_empty?(any) :: boolean

The opposite of empty?

iex> Func.Presence.non_empty?([])
false
iex> Func.Presence.non_empty?(%{})
false
iex> Func.Presence.non_empty?("")
false
iex> Func.Presence.non_empty?(1)
true

presence(val)

It returns the itself when the value is present, or returns nil.

iex> Func.Presence.presence(nil)
nil
iex> Func.Presence.presence(false)
nil
iex> Func.Presence.presence("")
nil
iex> Func.Presence.presence(%{})
nil
iex> Func.Presence.presence([])
nil
iex> Func.Presence.presence(1)
1

present?(val)

present?(any) :: boolean

present?(any) :: boolean

Checks the value is present.

iex> Func.Presence.present?(nil)
false
iex> Func.Presence.present?(false)
false
iex> Func.Presence.present?("")
false
iex> Func.Presence.present?(%{})
false
iex> Func.Presence.present?([])
false
iex> Func.Presence.present?(1)
true