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June 1, 2007

AS tips: \ in String

Filed under: Using Flash, Actionscript — betaruce @ 2:01 am

If there is "\" in a String variable, it will be "deleted" automatically and immediately (since "\" is usually used to represent something e.g. "\n" means a line break), and you won't be able to replace it e.g. with regular expression. To overcome this, you may use "\\".

Actionscript:
  1. var link:String="C:\Program Files\Adobe";
  2. trace(link);
  3. // ouput --> C:Program FilesAdobe
  4.  
  5. var link2:String="C:\\Program Files\\Adobe";
  6. trace(link2);
  7. // ouput --> C:\Program Files\Adobe

However, if the value is taken from a textfield (either dynamic or input textfield), the "\" will still remain.

Actionscript:
  1. // There is a dynamic text field on stage
  2. // with value "C:\Program Files\Adobe"
  3.  
  4. trace(txtField.text)
  5.  
  6. // output --> C:\Program Files\Adobe

• • •

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