class Object
Taken from ActiveSupport core_ext/object/blank
Public Instance Methods
blank?()
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An object is blank if it’s false, empty, or a whitespace string. For example, ”, ‘ ’, nil
, [], and {} are all blank.
This simplifies
address.nil? || address.empty?
to
address.blank?
@return [true, false]
# File vendor/gems/process_manager/lib/blank.rb, line 38 def blank? respond_to?(:empty?) ? !!empty? : !self end
presence()
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Returns the receiver if it’s present otherwise returns nil
. object.presence
is equivalent to
object.present? ? object : nil
For example, something like
state = params if params.present? country = params if params.present? region = state || country || ‘US’
becomes
region = params.presence || params.presence || ‘US’
@return [Object]
# File vendor/gems/process_manager/lib/blank.rb, line 65 def presence self if present? end
present?()
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An object is present if it’s not blank.
@return [true, false]
# File vendor/gems/process_manager/lib/blank.rb, line 45 def present? !blank? end