How to remove a particular text in TextInput in Flash?

Question

Design a Text Input by using components in flash and its InstanceName is listChat. In that text input I added a text by Dynamically. While I am adding text it displays with null.

For Example I added "apple" it Displays like nullapple

How to remove that null?

Answer 1

You can use the String's replace method.

If you want to remove only the first encounter of 'null' you can use this:

listChat.text = listChat.text.replace("null", "");

If you want to remove all encounters of 'null' this will do it:

var stripNullPattern:RegExp = /null/gi;
listChat.text = listChat.text.replace(stripNullPattern, "");

If you only want to remove null if it's in the first four characters use something like this:

if(listChat.text.substring(0, 4) == "null")
{
    listChat.text = listChat.text.replace("null", "");
}

Check the AS3 reference for more info:

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/String.html#replace()