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How to create a numpy array of all True or all False?
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numpy already allows the creation of arrays of all ones or all zeros very easily:
e.g. numpy.ones((2, 2)) or numpy.zeros((2, 2))
Since True and False are represented in Python as 1 and 0, respectively, we have only to specify this array should be boolean using the optional ...
Difference between a Message Broker and an ESB
I have gone through different questions/articles on Message Brokers and ESBs(Even on stackoverflow). Still not a clue as what is the CLEAR demarcating difference between an Message Broker and an ESB? Now here I am trying to compare products, Websphere Broker and Mule ESB!!
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The tilde operator in C
... it, but it's touchy. I read that if you have X and NOT it, then subtract one you'll get the unsigned version of a signed number, is that not correct?
– MarcusJ
Oct 21 '15 at 19:25
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Git push branch from one remote to another?
...hows you can construct a refspec that can do this:
$ git push rorg origin/one:refs/heads/one
Counting objects: 5, done.
Writing objects: 100% (3/3), 240 bytes, done.
Total 3 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (3/3), done.
To /tmp/rorg
* [new branch] origin/one -> one
S...
What is the difference between Python's list methods append and extend?
...ement to the end of a list. The length of the list itself will increase by one.
extend iterates over its argument adding each element to the list, extending the list. The length of the list will increase by however many elements were in the iterable argument.
append
The list.append method appends...
Two submit buttons in one form
I have two submit buttons in a form. How do I determine which one was hit serverside?
19 Answers
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How to check if a string contains text from an array of substrings in JavaScript?
...this:
if (new RegExp(substrings.join("|")).test(string)) {
// At least one match
}
...which creates a regular expression that's a series of alternations for the substrings you're looking for (e.g., one|two) and tests to see if there are matches for any of them, but if any of the substrings cont...
How to migrate GIT repository from one server to a new one
...igrate is my repository. This server is listed as the origin (master) for one of my projects. What is the proper way to move the repository to keep the history.
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Make xargs execute the command once for each line of input
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For me it can out as xargs -n 1 as the one you gave showed "argument list too long".
– Wernight
Sep 20 '11 at 9:14
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When should we use mutex and when should we use semaphore
...p till some other thread tells you to wake up. Semaphore 'down' happens in one thread (producer) and semaphore 'up' (for same semaphore) happens in another thread (consumer)
e.g.: In producer-consumer problem, producer wants to sleep till at least one buffer slot is empty - only the consumer thread ...