12个常用的函数技巧

12个常用的函数技巧，有的时候技巧就是这么简单

No.1 Copy content to clipboard:

1. System.setClipboard(strContent);

No.2 Clone an ArrayCollection:

1. //dummy solution( well, it works )
2. varbar:ArrayCollection = new ArrayCollection();
3. foreach ( var i:Object in ac ){
4. bar.addItem(i );
5. }
6. // fantastic ! //
7. varbar:ListCollectionView = new ListCollectionView( ListCollectionView( ac ).list );

No.3 Open URL:

1. navigateToURL(new URLRequest('http://ntt.cc'), '_blank'

No.4 Page reload:

1. navigateToURL(new URLRequest("javascript:location.reload();"),"_self")

No.5 Close browse:

1. navigateToURL(new URLRequest("javascript:window.close()"),"_self");

No.6 Set the background alpha to transparent on Alert window:

1. Alert
2. {
3. modalTransparency:0.0;
4. modalTransparencyBlur:0;
5. }

No.7 Set random color：

1. lbl.setStyle('color', 0xffffff*Math.random());

No.8 Trim left of white space

1. public function LTrim(s : String):String
2. {
3. vari : Number = 0;
4. while(s.charCodeAt(i) == 32 || s.charCodeAt(i) == 13 || s.charCodeAt(i) == 10 || s.charCodeAt(i) == 9)
5. {
6. i++;
7. }
8. returns.substring(i,s.length);
9. }

No.9 Trim right of white space

1. public function RTrim(s : String):String
2. {
3. vari : Number = s.length - 1;
4. while(s.charCodeAt(i) == 32 || s.charCodeAt(i) == 13 || s.charCodeAt(i) == 10 ||s.charCodeAt(i) == 9)
5. {
6. i--;
7. }
8. returns.substring(0,i+1);
9. }

No.10 Trim left and right of white space

1. public function Trim(s : String):String
2. {
3. returnLTrim(RTrim(s));
4. }

No.11 get data type:

1. getQualifiedClassName(data)

No.12 Generate check digits

1. private function GenerateCheckCode():String
2. {
3. //init
4. varran:Number;
5. varnumber:Number;
6. var code:String;
7. varcheckCode:String ="";
8. //get 4 radom
9. for(vari:int=0; i<4; i++)
10. {
11. ran=Math.random();
12. number =Math.round(ran*10000); //get result like 0.1234
13. if(number % 2 == 0)
14. code = String.fromCharCode(48+(number % 10)); //0's ASCII code is 48
15. else
16. code = String.fromCharCode(65+(number % 26)) ; // A's ASCII code is 65
17. checkCode += code;
18. }
19. returncheckCode;
20. }