Javascript Garbage collection for inline code

Question

We've In-Line Javascript data like following with thousand of lines. I've observed that it is taking lot of memory too, this is a problem in mobile browsers. Does it help to move this code to some JSON File, and parsing it. I just want this code to GCed as soon as it is executed.

 db.transaction(function(tx) {
     transaction.executeSql("INSERT INTO TABLE VALUES(111,'xxx','2012-11-09 18:48:12')");
     ..... Another 10K Lines of above String .............
   }

Cerbrus · Accepted Answer · 2012-11-20T11:26:38.427

1

With about 10k of those lines, you have about half a MB of raw text going through your js, not to mention the fact that you're calling transaction.executeSql() about 10k times.

You could reduce that a bit by combining multiple (/all) INSERT INTO statements into a single statement:

INSERT INTO
    TABLE
VALUES
    (111,'xxx','2012-11-09 18:48:12'),
    (222,'yyy','2012-11-09 18:48:12'),
    (333,'zzz','2012-11-09 18:48:12')
    etc...

edited Nov 20 '12 at 11:26

answered Nov 20 '12 at 11:00

Cerbrus

70,800
18
132
147

Thanks, that is helpful. We can a load Javascript file on-demand, Is there a way to unload it too ? – coder000001 Nov 20 '12 at 11:20
How are you loading the file? – Cerbrus Nov 20 '12 at 11:26
Some files are getting loaded with Script tag, But some are loaded with JQuery Mobile Framework – coder000001 Nov 21 '12 at 11:30
You could have a look at this: http://stackoverflow.com/questions/7781406/unload-external-js-file It doesn't seem like there's a specific function for it, though. – Cerbrus Nov 21 '12 at 11:55

Javascript Garbage collection for inline code

1 Answers1