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Keep-alive header clarification
..., C, B don't save sessions. Those are routers, they don't have any session table and they don't need to, because multiple packets from a same TCP client-to-server session may follow different paths. The role of the router is to choose the best IP path and forward the packet accordingly, so it doesn'...
How do I get the current time zone of MySQL?
...alues are not stored with timezone information in MySQL:
mysql> create table foo (tstamp datetime) Engine=MyISAM;
Query OK, 0 rows affected (0.06 sec)
mysql> insert into foo (tstamp) values (now());
Query OK, 1 row affected (0.00 sec)
mysql> set time_zone = '+01:00';
Query OK, 0 rows aff...
How does Google's Page Speed lossless image compression work?
...bilities to the fullest, e.g. PNG8+a instead of PNG24+a, optimized Huffman tables in JPEG, etc.
Photoshop doesn't really try hard to do that when saving images for the web, so it's not surprising that any tool beats it.
See
ImageOptim (lossless) and
ImageAlpha (lossy) for smaller PNG files (hi...
MongoDB: Is it possible to make a case-insensitive query?
...re an uppercase copy and search against that. For instance, I have a User table that has a username which is mixed case, but the id is an uppercase copy of the username. This ensures case-sensitive duplication is impossible (having both "Foo" and "foo" will not be allowed), and I can search by id ...
Perform Segue programmatically and pass parameters to the destination view
...t you are asking. In this case I am passing data from a selected cell in a table view to another view controller.
in the .h file of the trget view:
@property(weak, nonatomic) NSObject* dataModel;
in the .m file:
@synthesize dataModel;
dataModel can be string, int, or like in this case it's...
Can functions be passed as parameters?
... example of how to best use this idea! I have recreated it using an lookup table of structs that store info, including a pointer to the function you wish to execute. Perfect for this!
– James O'Toole
Oct 31 '16 at 5:16
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How to use UIScrollView in Storyboard
...to (320, 1000).
I think Apple should make this easier in storyboard, in a TableViewController you can just scroll offscreen in Storyboard (just add 20 cells, and you'll see you can simply scroll), this should be possible with a ScrollViewController too.
...
how to calculate binary search complexity
...ogarithmicly. Think about this for a moment. If you had 128 entries in a table and had to search linearly for your value, it would probably take around 64 entries on average to find your value. That's n/2 or linear time. With a binary search, you eliminate 1/2 the possible entries each iteration...
What are the aspect ratios for all Android phone and tablet devices?
...or a list of all screen aspect ratios for popular Android based Phones and Tablets.
5 Answers
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jQuery: Get height of hidden element in jQuery
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thanks for this. my problem involved a table cell, and setting visibility to hidden didn't solve my problem, but it gave me the idea to set position: fixed; top: 100% and it works like a charm!
– Jayen
Jun 4 '14 at 10:32
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