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iOS app error - Can't add self as subview
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Way back about iOS 4-something I saw something similar in one of our apps -- IIRC, if you popped animated and then immediately pushed animated the UI code would get badly mucked up. Ended up just changing to never do two animated push/...
What's the difference between HEAD^ and HEAD~ in Git?
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This answer made me distinguish between caret/tilde without number and with number! I thought ^^ was the same as ^2 but it's not .
– Alexander Derck
Oct 16 '18 at 10:44
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After array_filter(), how can I reset the keys to go in numerical order starting at 0
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Oh the time I've lost trying to figure out why the result of json_encode an array is different than that of json_encode an array_filtered array... thank you SO MUCH...
– Jerther
Oct 25 '15 at 0:40
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How to understand Locality Sensitive Hashing?
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Sorry I am late in this topic but I had a question about the cosine. The presentation says that the bit value is one if the dot product between the actual vector and the plane vector >= 0 or else it is 0. What is the direction of the plane vector because angles between 90 de...
What should I do if the current ASP.NET session is null?
... pages, you won't run into this. Most of my ASP .NET code uses Session without checking for null repeatedly. It is, however, something to think about if you are developing an IHttpModule or otherwise is down in the grittier details of ASP .NET.
Edit
In answer to the comment: Whether or not session s...
What is the difference between a cer, pvk, and pfx file?
... verify and identify web servers security. The file contains information about certificate owner and public key. A CER file can be in binary (ASN.1 DER) or encoded with Base-64 with header and footer included (PEM), Windows will recognize either of these layout.
PVK files:
Stands for Private Key. Wi...
How to echo with different colors in the Windows command line
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For Windows version below 10, the Windows command console doesn't support output coloring by default. You could install either Cmder, ConEmu, ANSICON or Mintty (used by default in GitBash and Cygwin) to add coloring support to your Windows command console.
Windows 10 - Command Line Colors
Startin...
Best way to select random rows PostgreSQL
...:regclass;
As long as ct isn't much smaller than id_span, the query will outperform other approaches.
WITH params AS (
SELECT 1 AS min_id -- minimum id <= current min id
, 5100000 AS id_span -- rounded up. (max_id - min_id + buffer)
)
SELECT *
FROM...
How to add an Access-Control-Allow-Origin header
...aders
select Access-Control-Allow-Origin
add the single character '*' (without the quotes)
hit enter
repeat for the other files
If you need to continue and do #2, then you'll need a command line with CURL
curl -D - --header "X-Auth-Key: your-auth-key-from-rackspace-cloud-control-panel" --header "...
How to specialize std::hash::operator() for user-defined type in unordered containers?
...t template argument, though specialising std::hash is still the nicest way out :-)
– Kerrek SB
Nov 16 '11 at 21:49
use...