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Print a list in reverse order with range()?
... in general but it accepts range. Why would reversed(range(10000)) need to allocate memory for the whole list? range can return an object that implements the __reversed__ method that allows efficient reverse iteration?
– avmohan
Aug 5 '17 at 10:45
...
How to customize the background color of a UITableViewCell?
...ll's background is panted yellow:
UIView* backgroundView = [ [ [ UIView alloc ] initWithFrame:CGRectZero ] autorelease ];
backgroundView.backgroundColor = [ UIColor yellowColor ];
cell.backgroundView = backgroundView;
for ( UIView* view in cell.contentView.subviews )
{
view.backgroundColor =...
Suppressing deprecated warnings in Xcode
...ith blocks of code:
SILENCE_IOS7_DEPRECATION(
view = [[MKPolylineView alloc] initWithPolyline:self];
view.lineWidth = self.lineWidth;
view.strokeColor = self.color;
);
Also, when you do drop support for pre-iOS 7 devices, you can easily search through the code to find the deprecated u...
Accessing Session Using ASP.NET Web API
...r, there is a way to define the session state behavior per route using DataTokens: stackoverflow.com/a/34727708/1412787
– Axel Wilczek
Jan 11 '16 at 17:44
...
What are all the common ways to read a file in Ruby?
...asuring in gigabytes, and your host is freezing up as it tries to read and allocate memory.
Line-by-line I/O is very fast, and almost always as effective as slurping. It's surprisingly fast actually.
I like to use:
IO.foreach("testfile") {|x| print "GOT ", x }
or
File.foreach('testfile') {|x|...
Shiro vs. SpringSecurity [closed]
...few words, what I did was implement my own AuthorizingRealm, AuthenticationToken, and AuthenticationFilter. And all the necessary filters and plumbing. But what I do is not "normal" sso, it is based on a token that is stored in the DB that is common between the 2 apps. So I am not using a separate S...
How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...njoy it!!!
Just because I have had problems with my hosting provider
<?php /*
Author: Luis Siquot
Purpose: Check ajax performance and errors
License: GPL
site5: Please don't drop json requests (nor delay)!!!!
*/
$r = (int)$_GET['r'];
$w = (int)$_GET['w'];
if($r) {
sleep($w);
ech...
Best way to store password in database [closed]
...ssword: Best Practices?
Is it ever ok to store password in plain text in a php variable or php constant?
To clarify a bit further on the salting bit, the danger with simply hashing a password and storing that is that if a trespasser gets a hold of your database, they can still use what are known a...
Can enums be subclassed to add new elements?
...e_StatusGroup.START),
SUCCESS (State_StatusGroup.FINISH),
FAIL_TOKEN_TIMEOUT (State_StatusGroup.FAIL,
State_StatusGroup.FINISH),
FAIL_NOT_COMPLETE (State_StatusGroup.FAIL,
State_StatusGroup.STEP),
FAIL_UNKNOWN (State_StatusGr...
When is CRC more appropriate to use than MD5/SHA1?
...
I ran every line of this PHP code in 1.000.000 loop. Results are in comments (#).
hash('crc32', 'The quick brown fox jumped over the lazy dog.');# 750ms 8 chars
hash('crc32b','The quick brown fox jumped over the lazy dog.');# 700ms 8 chars
has...