request

variables

form

url

cgi

Server

Application

Session

variables

this

local

arguments

attributes

thisTag

caller

Mostly you're probably working with these scopes:

• Variables scope is the scope where all variables are assigned to when nothing else is intentionally declared (like the window scope in JavaScript).
• Form scope When you send a form to your server, all the form fields which can be identified (by setting the name/id property) are accessible in this scope for further server-side processing.
• URL scope All url query params are stored in that scope
• this scope Inside a component the this refers to the component itself
• local scope Variables declared inside a function using the local statement are encapsulated and only accessible inside that specific function (this is made to avoid pollution of other sopes)
• Arguments scope Arguments passed to a function inside a component declared by the cfargument tag are accessible with that scope

• Components and functions

  • variables
  • this
  • local
  • arguments

• Custom tags

  • attributes
  • thisTag
  • caller

• Global Scopes

  • Server
  • Application
  • Session

• Request Scopes

  • request
  • variables
  • form
  • url
  • cgi