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NodeJS / Express: what is “app.use”?
...gt;) for every middleware layer that you want to add (it can be generic to all paths, or triggered only on specific path(s) your server handles), and it will add onto your Express middleware stack. Middleware layers can be added one by one in multiple invocations of use, or even all at once in seri...
What is “git remote add …” and “git push origin master”?
..., git is a distributed version control system. Most operations are done locally. To communicate with the outside world, git uses what are called remotes. These are repositories other than the one on your local disk which you can push your changes into (so that other people can see them) or pull from...
What is the equivalent of the C# 'var' keyword in Java?
...to give a proper type to myData. 6 years ago, this was impossible in Java (all Types had names, even if they were extremely verbose and unweildy). I do not know if this has changed in the mean time.
var is not the same as dynamic. variables are still 100% statically typed. This will not compile:
va...
ASP.NET MVC Conditional validation
...
@RayLoveless you should be calling ModelState.IsValid - not calling Validate directly
– viperguynaz
Jan 11 '18 at 6:32
...
Matplotlib plots: removing axis, legends and white spaces
...ite the resulting image, without using axes, labels, titles or anything usually automatically added by matplotlib. Here is what I did:
...
How can I style an Android Switch?
...h slider images that let part of the thumb move out of the track was especially helpful as i couldn't work out how they were doing that. (the default slider has the pointy edge bits move past the end of the track to make a square end on one side)
– Glenn.nz
Apr...
Retina displays, high-res background images
...ges/box-bg@2x.png') no-repeat top left / 200px 200px;
}
However, I personally would not advise using the shorthand form as it is not supported in iOS <= 6 or Android making it unreliable in most situations.
share
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Calling a static method on a generic type parameter
...
In this case you should just call the static method on the constrainted type directly. C# (and the CLR) do not support virtual static methods. So:
T.StaticMethodOnSomeBaseClassThatReturnsCollection
...can be no different than:
SomeBaseClass.StaticMet...
Easier way to debug a Windows service
... static void DebugMode()
{
Debugger.Break();
}
On your OnStart, just call this method:
public override void OnStart()
{
DebugMode();
/* ... do the rest */
}
There, the code will only be enabled during Debug builds. While you're at it, it might be useful to create a separate Build Con...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
...
Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict co...