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What new capabilities do user-defined literals add to C++?
...eate our own types (i.e. classes), with potentially no overhead (inlining, etc.). We had the possibility to add operators to their types, to have them behave like similar built-in types, which enables C++ developers to use matrices and complex numbers as naturally as they would have if these have be...
open read and close a file in 1 line of code
...re information.
>>> from pathlib import Path
>>> (Path("/etc") / "hostname").read_text()
'dev1.example\n'
On Python 27 install backported pathlib or pathlib2
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ActiveRecord: List columns in table from console
...del name:
> User
gives:
User(id: integer, name: string, email: string, etc...)
In rails four, you need to establish a connection first:
irb(main):001:0> User
=> User (call 'User.connection' to establish a connection)
irb(main):002:0> User.connection; nil #call nil to stop repl spitti...
What is the real overhead of try/catch in C#?
...
When an exception is thrown in addition to the stack unwinding operations etc that take place which others have mentioned you should be aware that a whole bunch of runtime/reflection related stuff happens in order to populate the members of the exception class such as the stack trace object and the...
Batch script loop
...this:
for /l %x in (1, 1, 100) do (
echo %x
copy %x.txt z:\whatever\etc
)
or in a batch file
for /l %%x in (1, 1, 100) do (
echo %%x
copy %%x.txt z:\whatever\etc
)
Key:
/l denotes that the for command will operate in a numerical fashion, rather than operating on a set of files
%x i...
How to create a string with format?
I need to create a string with format which can convert int, long, double etc. types into string. Using Obj-C, I can do it via below way.
...
What is Node.js? [closed]
...n. Duplicate form validation code can be shared between server and client, etc.
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edited Oct 23 '12 at 18:26
Robert Harvey
...
Is using a lot of static methods a bad thing?
...ons this isn't possible (e.g., regular class code generation from XSD/WSDL/etc), or it will make the class very long, and transformation methods can often be a real pain for complex objects and you just want them in their own separate class. So yeah, I have static methods in utility classes.
...
How do I prevent a Gateway Timeout with FastCGI on Nginx
...
If it helps, mine was at /etc/nginx/ at Media Temple's DV system.
– jeffkee
Aug 2 '12 at 21:37
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How can i use iptables on centos 7? [closed]
...
then we can use iptables-save > /etc/sysconfig/iptables
– dgregory
Dec 11 '17 at 6:15
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