Flash actionscript 3.0 I have no special talent. I am only passionately curious

you can easily change the text in to lower case & upper case and find the length of a string in AS3.0 and you can find the desired word in which area

AS 3.0
Code:

b1_btn.addEventListener(MouseEvent.CLICK,fun);
b2_btn.addEventListener(MouseEvent.CLICK,fun1);
b3_btn.addEventListener(MouseEvent.CLICK,fun2);
b4_btn.addEventListener(MouseEvent.CLICK,fun3);
function fun(e:Event)
{
t1_txt.text=t1_txt.text.toUpperCase();
}
function fun1(e1:Event)
{
t1_txt.text=t1_txt.text.toLowerCase();
}
function fun2(e2:Event)
{
t2_txt.text=Number(t1_txt.text.length).toString();
}
function fun3(e3:Event)
{
t2_txt.text=Number(t1_txt.text.indexOf(t2_txt.text)).toString();
}

this is the code to became a text in to lower case,upper case and to find the length of a string and to find the index of the string using Action Script 3.0