calling anonymous js (不需要额外书写js)

JS_LocalStorage.as

package utils
{
import flash.external.ExternalInterface;

//@see https://code.tutsplus.com/tutorials/quick-tip-how-to-communicate-between-flash-and-javascript--active-3370
public class JS_LocalStorage
{
	public function JS_LocalStorage()
	{
	}
	
	public static function save(_key:String, _value:*):void
	{
		try{
			ExternalInterface.call("function(key, value) {window.localStorage.setItem(key, value); }", _key, _value);
		}
		catch(e:Error){
		}
	}
	
	public static function read(_key:String):*
	{
		try {
			var result:* = ExternalInterface.call("function(key) {return window.localStorage.getItem(key); }", _key);
			return result;
		}catch(e:Error){
		}
	}
	
	public static function contain(key:String):Boolean
	{
		var result:* = read(key);
		return result != null && result != undefined;
	}
}
}