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Creating a blocking Queue in .NET?
...od, but not in the Add method. What happens if one thread Adds at the same time as another thread Removes? Bad things.
Also consider that a method can return a second object that provides access to the first object's internal data - for example, GetEnumerator. Imagine one thread is going through th...
How can I reconcile detached HEAD with master/origin?
...understand how git works before you blindly run any commands. You can save time by not reading the big answer, but can lose more time if your work is lost.
– Yusufali2205
Mar 11 '19 at 16:15
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How do I compare two DateTime objects in PHP 5.2.8?
...ing a look on the PHP documentation, the following two methods of the DateTime object would both seem to solve my problem:
...
Rank items in an array using Python/NumPy, without sorting array twice
...solution and it would seem obvious once I saw it. I did some testing with timeit, and this method is slightly slower for small arrays. On my machine they're equal when the array has 2,000 elements. At 20,000 elements, your method is about 25% faster.
– joshayers
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CSS '>' selector; what is it? [duplicate]
I've seen the "greater than" ( > ) used in CSS code a few times, but I can't work out what it does. What does it do?
7 A...
NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
...equest, so it responds with an error.
Just include and increase proxy_read_timeout in location config block.
Same thing happened to me and I used 1 hour timeout for an internal app at work:
proxy_read_timeout 3600;
With this, NGINX will wait for an hour (3600s) for its upstream to return somethin...
namedtuple and default values for optional keyword arguments
...er -> for functions) in Python is that they are evaluated at definition time*. So, since "class names become defined once the entire body of the class has been executed", the annotations for 'Node' in the class fields above must be strings to avoid NameError.
This kind of type hints is called "f...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...instead of selling. A system that just bought S&P500 futures at random times between 1995 and 1999 (without any kind of GA nonsense going on) would have made tons of money, but we only know this in retrospect.
– MusiGenesis
Sep 11 '10 at 12:09
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
...
Use the ordinalize method from 'active_support'.
>> time = Time.new
=> Fri Oct 03 01:24:48 +0100 2008
>> time.strftime("%a %b #{time.day.ordinalize}")
=> "Fri Oct 3rd"
Note, if you are using IRB with Ruby 2.0, you must first run:
require 'active_support/core_ext...
#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
...ENABLED in preprocessor and compiled tests. Example - Often, I want longer timeouts when debug is enabled, so using #if, I can write this
DoSomethingSlowWithTimeout(DEBUG_ENABLED? 5000 : 1000);
... instead of ...
#ifdef DEBUG_MODE
DoSomethingSlowWithTimeout(5000);
#else
DoSomethingSlowWith...