3 Replies Latest reply on Jun 22, 2010 6:18 AM by miguel8312-3K1O2b

    syntax !variable

    miguel8312 Level 3

      i often time see syntax like this...!variableName can someone please tell me what this stands for... it seems shorthand for something but im not sure i get it sorry for my ignorance your reponse is greatly appreciated.

      Miguel

        • 1. Re: syntax !variable
          David_F57 Level 5

          hi,

           

          ! = is not

           

          so if myTest = false;

           

          !myTest  evaluates to true (basically the opposite)

           

          if (myTest == false) is the same as if(!myTest)

           

          David.

          • 2. Re: syntax !variable
            BhaskerChari Level 4

            Hi miguel8312,

             

            As David said in his earliar post hope you have understood its significance...and I just want to add few more points

             

            we can also use ! symbol the follwing way...

             

            var someVariable:String;

            if(!someVariable) is equivalent to using  if(someVariable == null)

             

            var someVariable:String="";// empty string

            if(!someVariable) is equivalent to using  if(someVariable == "")

             

            Thanks,

            Bhasker Chari

            1 person found this helpful
            • 3. Re: syntax !variable
              miguel8312-3K1O2b

              thank you both i really appreciated this was killing me I kept seeing in others actionscript code but i didnt want to assume... Thank for your replies and sharing.

              Miguel