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HEAD and ORIG_HEAD in Git
...anch". that's why when you in detached head , you do git branch foo -b in order to "create" a branch for that orphans commits.
– Royi Namir
Mar 11 '19 at 11:41
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...
How to use a variable inside a regular expression?
...scaped. Only special characters with meaning in a regex are still escaped. _ is not escaped since Python 3.3.(s. here)
Curly braces:
If you want to use quantifiers within the regular expression using f-strings, you have to use double curly braces. Let's say you want to match TEXTO followed by exac...
Private virtual method in C++
...e a template for other reasons).
I NEED to have the common base class in order to make many of the public APIs work correctly (I'm using variadic templates), but I cannot let that object out into the wild. Worse, if I leave the craters in the state machine- in the form of pure virtual functions- a...
Very large matrices using Python and NumPy
...ssing the data as a NumPy recarray again is as simple as:
data = table[row_from:row_to]
The HDF library takes care of reading in the relevant chunks of data and converting to NumPy.
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What is Unicode, UTF-8, UTF-16?
...s basic unit, it is affected by endianness. To compensate, a reserved byte order mark can be placed at the beginning of a data stream which indicates endianness. Thus, if you are reading UTF-16 input, and no endianness is specified, you must check for this.
As can be seen, UTF-8 and UTF-16 are now...
Create the perfect JPA entity [closed]
...he obj or a no-arg ctor which gives no clue what shall be set and in which order and leaves it prone to user's mistakes?
– mohamnag
Feb 2 '18 at 10:35
1
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Why should I prefer single 'await Task.WhenAll' over multiple awaits?
In case I do not care about the order of task completion and just need them all to complete, should I still use await Task.WhenAll instead of multiple await ? e.g, is DoWork2 below a preferred method to DoWork1 (and why?):
...
Find a value in an array of objects in Javascript [duplicate]
...
array.find(x => x.name === 'string 1')
http://exploringjs.com/es6/ch_arrays.html#_searching-for-array-elements
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/find
To then replace said object (and use another cool ES6 method fill) you could do something li...
If REST applications are supposed to be stateless, how do you manage sessions?
...ts, the clients store their session state and the servers can service many orders of magnitude or more clients in a stateless fashion.
Even for a service that you think will only need in the 10's of thousands of concurrent users, you still should make your service stateless. Tens of thousands is sti...
Exit codes in Python
...re.
Example:
import sys, os
try:
config()
except:
sys.exit(os.EX_CONFIG)
try:
do_stuff()
except:
sys.exit(os.EX_SOFTWARE)
sys.exit(os.EX_OK) # code 0, all ok
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