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To ARC or not to ARC? What are the pros and cons? [closed]
...ing out of memory management practice when you have to switch between code-bases. Some of my projects run on 10.4, so I still do a lot of Objective-C 1.0 work (so no @synthesize, let alone ARC). But you get used to switching modes pretty well.
– Rob Napier
Jan ...
How is the undo tree used in Vim?
...
Brian CarperBrian Carper
64.9k2525 gold badges154154 silver badges164164 bronze badges
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CSS to make HTML page footer stay at bottom of the page with a minimum height, but not overlap the p
...rror which caused it to not work (the error was not present in the linked "DEMO", which is ok). I took the liberty of fixing it.
– sleske
Jul 12 '18 at 13:57
...
Pick a random element from an array
...so that we have:
UInt.random
UInt8.random
UInt16.random
UInt32.random
UInt64.random
UIntMax.random
// closed intervals:
(-3...3).random
(Int.min...Int.max).random
// and collections, which return optionals since they can be empty:
(1..<4).sample
[1,2,3].sample
"abc".characters.sample
["a": 1...
Convert from ASCII string encoded in Hex to plain ASCII?
...his, here's one of the shortest, using only python-provided stuff:
import base64
hex_data ='57696C6C20796F7520636F6E76657274207468697320484558205468696E6720696E746F20415343494920666F72206D653F2E202E202E202E506C656565656173652E2E2E212121'
ascii_string = str(base64.b16decode(hex_data))[2:-1]
print (a...
SQL injection that gets around mysql_real_escape_string()
...ing().
#For Very OBSCURE EDGE CASES!!!
The long answer isn't so easy. It's based off an attack demonstrated here.
The Attack
So, let's start off by showing the attack...
mysql_query('SET NAMES gbk');
$var = mysql_real_escape_string("\xbf\x27 OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = ...
SQL SELECT speed int vs varchar
...
Some rough benchmarks:
4 million records in Postgres 9.x
Table A = base table with some columns
Table B = Table A + extra column id of type bigint with random numbers
Table C = Table A + extra column id of type text with random 16-char ASCII strings
Results on 8GB RAM, i7, SSD laptop:
Siz...
ListBox vs. ListView - how to choose for data binding
... has a simple list of items that I intend to be able to search/sort/filter based on user input. The data binding demo ( http://msdn.microsoft.com/en-us/library/ms771319.aspx ) uses a ListBox with a CollectionViewSource.
...
FormsAuthentication.SignOut() does not log the user out
...de caching in the Page_Load event of each page, or in the OnLoad() of your base page:
Response.Cache.SetCacheability(HttpCacheability.NoCache);
You might also like to call:
Response.Cache.SetNoStore();
share
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What are queues in jQuery?
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+1. I'm working on a jQuery-based user script that needs to connect to a PHP script as if it were another PHP script running on the client -- one HTTP request/other operation at a time, so this will definitely be helpful. Just a question: jQuery require...