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Windows batch: formatted date into variable
... this is a pretty portable):
@if (@X)==(@Y) @end /****** silent line that start jscript comment ******
@echo off
::::::::::::::::::::::::::::::::::::
::: Compile the script ::::
::::::::::::::::::::::::::::::::::::
setlocal
if exist "%~n0.exe" goto :skip_compilation
set "frm=%SystemRoot%...
What it the significance of the Javascript constructor property?
... That was true when those answers were written, but ES2015 and onward have started using constructor for things.
The constructor property of the prototype property of a function is meant to point back to the function so that you can ask an object what constructed it. It's set up automatically as par...
Method chaining - why is it a good practice, or not?
...cumbersome very fast. Instead I opted for the chaining approach:
MyObject.Start()
.SpecifySomeParameter(asdasd)
.SpecifySomeOtherParameter(asdasd)
.Execute();
The method chaining approach was optional, but it made writing code easier (especially with IntelliSense). Mind you that this ...
Vim: Move cursor to its last position
... goes to the same location on the line, whereas the apostrophe goes to the start of the line. On a UK keyboard, the apostrophe is more accessible, so I tend to use that one. There are loads of useful marks like this, see :help mark-motions.
For some other motions (not 2j I think), there's also th...
In C, do braces act as a stack frame?
...hat gcc 4.3.4 does, and it allocates all of the stack space at once at the start of the function. You can examine the assembly that gcc produces using the -S flag.
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What is the difference between a thread and a fiber?
...fiber yields execution (same note as above). This means that fibers always start and stop in well-defined places, so data integrity is much less of an issue. Also, because fibers are often managed in the user space, expensive context switches and CPU state changes need not be made, making changing f...
How to modify PATH for Homebrew?
...paths
/usr/local/bin
/usr/local/sbin
/usr/bin
/bin
/usr/sbin
/sbin
and Restart the terminal, @mmel
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Convert UTC datetime string to local datetime
...ween UTC and local time).
If you aren't the one instantiating the date to start with, but you can still create a naive datetime object in UTC time, you might want to try this Python 3.x code to convert it:
import datetime
d=datetime.datetime.strptime("2011-01-21 02:37:21", "%Y-%m-%d %H:%M:%S") #G...
Can the :not() pseudo-class have multiple arguments?
...
Starting from CSS Selectors 4 using multiple arguments in the :not selector becomes possible (see here).
In CSS3, the :not selector only allows 1 selector as an argument. In level 4 selectors, it can take a selector list ...
Actual meaning of 'shell=True' in subprocess
...in the subprocess documentation. But in addition to that, the overhead of starting a shell to start the program you want to run is often unnecessary and definitely silly for situations where you don't actually use any of the shell's functionality. Moreover, the additional hidden complexity should ...
