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basil01
Participating Frequently
June 10, 2014
Answered

Simple equality check not working

  • June 10, 2014
  • 5 replies
  • 269 views

Hi

one of my students has an error, and I can't see it.

He has a input text box (a), and he's looking to check that the user enters "one". If they get it right, it displays a message in dynamic text box (b)

var x:String = "one";

btn_done.onPress = function(){

  if (a.text != x){

  b.text="Wrong";

  trace(a.text);

  }

  else{

  b.text = "Right";

  }

}

No matter what one types, the response is "wrong". I've spent hours looking, but can't see the problem. Can anyone shed some light please?

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Correct answer kglad

change the textfield from multiline to single line.

(when a text trace look like you expect but doesn't act the way you expect, trace its length, too.  that will reveal white space problems.  in your case you probably have a carriage return at the end of "one".  ie, "one\r".)

5 replies

kglad
Community Expert
kgladCommunity ExpertCorrect answer
Community Expert
June 10, 2014

change the textfield from multiline to single line.

(when a text trace look like you expect but doesn't act the way you expect, trace its length, too.  that will reveal white space problems.  in your case you probably have a carriage return at the end of "one".  ie, "one\r".)

    B
    basil01Author
    Participating Frequently
    June 10, 2014

    How do you trace the length?

    kglad
    Community Expert
    kgladCommunity Expert
    Community Expert
    June 10, 2014

    strings have a length property:

    var x:String = "one";

    btn_done.onPress = function(){

      if (a.text != x){

      b.text="Wrong";

    trace(a.text+" "+a.text.length);

      }

      else{

      b.text = "Right";

      }

    }

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