init project

app/services/application_service.rb

@@ -0,0 +1,17 @@
+class ApplicationService
+  include Callable
+
+  Error = Class.new(StandardError)
+
+  def regix_emoji content
+    " " if content.blank?
+    regex = /[^a-zA-Z0-9\u4E00-\u9FFF]/
+    content.gsub(regex, '')
+  end
+
+  private
+
+  def strip(str)
+    str.to_s.strip.presence
+  end
+end