Best way to replace all spaces, symbols, numbers, uppercase letters from a string in actionscript?

问题

What would be the best way to simply take a string like

var myString:String = "Thi$ i$ a T#%%Ible Exam73@";

and make myString = "thiiatibleeam";

or another example

var myString:String = "Totally Awesome String";

and make myString = "totallyawesomestring";

In actionscript 3 Thanks!

回答1:

Extending @Sam OverMars' answer, you can use a combination of String's replace method with a Regex and String's toLowerCase method to get what you're looking for.

var str:String = "Thi$ i$ a T#%%Ible Exam73@";
str = str.toLowerCase(); //thi$ i$ a t#%%ible exam73@
str = str.replace(/[^a-z]/g,""); //thiiatibleexam

The regular expression means:

[^a-z] -- any character *not* in the range a-z
/g     -- global tag means find all, not just find one

回答2:

I think this is the regex you're looking for:

[Bindable]
var myString:String = "Thi$ i$ a T#%%Ible Exam73@";
[Bindable]
var anotherString:String = "";
protected function someFunction():void
{
    anotherString = myString.replace(/[^a-zA-Z]/g, "");
    anotherString = anotherString.toLowerCase();
}

回答3:

I belive what your looking for is:

var myString =  str.replace("find", "replace");

or in your case:

str.replace("$", "");

also, it might be:

str.replace('$', ' ');

//EDIT How about:

 var mySearch:RegExp = /(\t|\n|\s{1,})/g;

 var myString =  str.replace(mySearch, "");

来源：https://stackoverflow.com/questions/7031341/best-way-to-replace-all-spaces-symbols-numbers-uppercase-letters-from-a-strin