Init() function in ColdFusion

init() is just a standard convention most people adopt with components. The init() function initializes any variables needed by the component's functions. Then returns a reference to the current component.
ie
    

  1. Test.cfm
    2. 

  2. <cfset myObj = createObject("component", "MyComponent").init(dsn="My DSN")>
    3. 

    4. 

  4. MyComponent.cfc
    5. 

  5. <cfcomponent>
    6. 

  6.     <cffunction name="init" output="false" returntype="MyComponent">
    7. 

  7.          <cfargument name="dsn" type="string">
    8. 

  8.          <!--- initialize variables used within this component --->
    9. 

  9.          <cfset variables.dsn = arguments.dsn>
    10. 

  10.          <!--- return a reference to this component --->
    11. 

  11.          <cfreturn this>
    12. 

  12.     </cffunction>
    13. 

  13. </cfcomponent
    14.

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