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Using smart pointers for class members
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This is something that only you as a designer of your program can tell; from the example you provide, it is hard for me to tell whether this is the case or not.
To help you figure it out, you may ask yourself whether there are any other objects apart from Settings that are entitled to keep the D...
Finding the number of days between two dates
...time intervals not specific points in time, the format syntax is different from the date() and strftime() syntax. The time interval syntax can be found here: php.net/manual/en/dateinterval.format.php
– Andrew
Jun 4 '13 at 7:56
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Transpose list of lists
...in args is a separate positional argument of f.
Coming back to the input from the question l = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], zip(*l) would be equivalent to zip([1, 2, 3], [4, 5, 6], [7, 8, 9]). The rest is just making sure the result is a list of lists instead of a list of tuples.
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How unique is UUID?
... for distributed
applications, so that UUIDs do not clash even when data from many
devices is merged, the randomness of the seeds and generators used on
every device must be reliable for the life of the application. Where
this is not feasible, RFC4122 recommends using a namespace variant
i...
C++ static virtual members?
...you use the class instead of an object, it would naturally use the version from that class, instead of doing virtual-dispatch. Nothing new there.
– Deduplicator
Feb 2 '15 at 22:17
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How do you detect Credit card type based on number?
...PAN, or Primary Account Number. The first six digits of the PAN are taken from the IIN, or Issuer Identification Number, belonging to the issuing bank (IINs were previously known as BIN — Bank Identification Numbers — so you may see references to that terminology in some documents). These six ...
How can I use grep to find a word inside a folder?
...led just "files" in Windows).
grep -nr string reads the content to search from the standard input, that is why it just waits there for input from you, and stops doing so when you press ^C (it would stop on ^D as well, which is the key combination for end-of-file).
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How can I beautify JavaScript code using Command Line?
...cript.tools.shell.Main name-of-script.js
Use the Pretty Print/Beautifier from step 1 to write a small shell script that will read in your javascript file and run it through the Pretty Print/Beautifier from step one. For example
//original code
(function() { ... js_beautify code ... }());
//...
Move existing, uncommitted work to a new branch in Git
... switch subcommand in an attempt to clear some of the confusion that comes from the overloaded usage of checkout (switching branches, restoring files, detaching HEAD, etc.)
Starting with this version of Git, replace above's command with:
git switch -c <new-branch>
The behavior is identical...
How to write inline if statement for print?
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If you don't want to from __future__ import print_function you can do the following:
a = 100
b = True
print a if b else "", # Note the comma!
print "see no new line"
Which prints:
100 see no new line
If you're not aversed to from __future_...