Validate Email without RegExp in AS2 and AS3 in Flash

The below code shows how to use the class


import druva.emailValidator;

trace('druva.flash@gmail.com > '+emailValidator.isValid('druva.flash@gmail.com'));
// true
trace('druva.flash@gmail > '+emailValidator.isValid('druva.flash@gmail'));
// false
trace('druva.@.com > '+emailValidator.isValid('druva.@.com'));
//false
trace('druva.@gmail.com > '+emailValidator.isValid('druva.@gmail.com'));
//true
trace('.aa@gmailcom > '+emailValidator.isValid('.aa@gmailcom'));
//false

This is the actual class for validation


package druva {
  import flash.display.Sprite;

  public class emailValidator extends Sprite{
    public function emailValidator(){
    }

    public static function isValid(em:String):Boolean {

        var sEmail:String = new String(em);
        var validEmail:Boolean = true;
        var numDotPos:int = sEmail.indexOf("@");
        var nDotIndex:int = sEmail.lastIndexOf(".");
        if(numDotPos == -1 || nDotIndex == -1) {
          validEmail = false;
        }
        if(!(numDotPos > 0)) {
          validEmail = false;
        }
          if(!(nDotIndex > numDotPos)) {
        validEmail = false;
        }
        if(!(numDotPos < sEmail.length - 1) || !(nDotIndex > numDotPos + 1)) {
          validEmail = false;
        }
        return validEmail;
    }

  }
}

Converting string to array using actionscript

var originalString:String=”abcdef”;
var arrayString:Array = originalString.split(“”);

var arrString:Array = arrayString.join(“”);

CS4 string case convertion and comparision of two strings with action script

This code show how to convert string case to upper and to lower.
And also shows how to compare two strings and returns index value.


var site:String = "http://www.flashallys.com/blog";

var siteUp:String = site.toUpperCase();
var siteLow:String = site.toLowerCase();

trace(siteUp.indexOf('flashallys'));
trace(siteLow.indexOf('flashallys'));

CS4 instance of a string and concatenate two strings with action script

This code show how to create instance of a string.
And this code shows how to concatenate two strings.


var a:String = "vineela";
var b:String = a;
a = "Druva";
trace(a.concat(b));

remove Extra Whitespace with actionscript

package com.druva.util {

   public class StringUtils {
	public static removeExtraWhitespace(p_string:String):String {
	   if (p_string == null) { return ''; }
	   var str:String = trim(p_string);
	   return str.replace(/\s+/g, ' ');
	}
	public static function trim(p_string:String):String {
	   if (p_string == null) { return ''; }
	   return p_string.replace(/^\s+|\s+$/g, '');
	}
}