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What is the proper REST response code for a valid request but an empty data?
...y formatted HTTP request (for instance malformed http headers, incorrectly ordered segments, etc). This will almost certainly be handled by whatever framework you're using. You shouldn't have to deal with this unless you're writing your own server from scratch. Edit: Newer RFCs now allow for 400 to ...
How do I associate file types with an iPhone application?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How to perform .Max() on a property of all objects in a collection and return the object with maximu
...er which finds the maximum value on every iteration (making it O(n^2))
The ordering solution is O(n log n)
Taking the Max value and then finding the first element with that value is O(n), but iterates over the sequence twice. Where possible, you should use LINQ in a single-pass fashion.
It's a lot s...
How to perform Callbacks in Objective-C
...Object:self]; to [object performSelector:selector withObject:self]; in order to get it to work correctly.
– Banjer
Oct 12 '10 at 1:48
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I want to get Year, Month, Day, etc from Java Date to compare with Gregorian Calendar date in Java.
...th = cal.get(Calendar.MONTH);
int day = cal.get(Calendar.DAY_OF_MONTH);
// etc.
Beware, months start at 0, not 1.
Edit: Since Java 8 it's better to use java.time.LocalDate rather than java.util.Calendar. See this answer for how to do it.
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PHP - Check if two arrays are equal
...$a === $b); // TRUE if $a and $b have the same key/value pairs in the same order and of the same types.
See Array Operators.
EDIT
The inequality operator is != while the non-identity operator is !== to match the equality
operator == and the identity operator ===.
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Nginx reverse proxy causing 504 Gateway Timeout
... similar issue to this one and tried to change my timeout settings in the /etc/nginx/nginx.conf file, as almost everyone in these threads suggest. This, however, did not help me a single bit; there was no apparent change in NGINX' timeout settings. After many hours of searching, I finally managed to...
SQL Server add auto increment primary key to existing table
... I would like to start counting at 1000. I suspect I can use ALTER TABLE ORDER ALTER COLUMN ORDERNO RESTART WITH 1 but I didn't want to try it without checking with an expert :) Ref. pic.dhe.ibm.com/infocenter/iseries/v7r1m0/…
– user1477388
Mar 8 '13 at 1...
How do I change bash history completion to complete what's already on the line?
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You may need to enabled bash completion.
Check
/etc/profile
/etc/bash.bashrc
~/.bashrc
to see if any of the above files source /etc/bash_completion. i.e.
. /etc/bash_completion
If /etc/bash___completion is not sourced by any of the above files you will need to add i...
How to normalize an array in NumPy?
...iving optimal performance.
import numpy as np
def normalized(a, axis=-1, order=2):
l2 = np.atleast_1d(np.linalg.norm(a, order, axis))
l2[l2==0] = 1
return a / np.expand_dims(l2, axis)
A = np.random.randn(3,3,3)
print(normalized(A,0))
print(normalized(A,1))
print(normalized(A,2))
prin...