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Function pointers, Closures, and Lambda
...why, in C#, you can do:
int lessThan = 100;
Func<int, bool> lessThanTest = delegate(int i) {
return i < lessThan;
};
I used an anonymous delegate there as a closure (it's syntax is a little clearer and closer to C than the lambda equivalent), which captured lessThan (a stack variable)...
Can you list the keyword arguments a function receives?
... set() # All accepted
return set(argdict) - set(args)
And so a full test if it is callable is :
def isCallableWithArgs(func, argdict):
return not missingArgs(func, argdict) and not invalidArgs(func, argdict)
(This is good only as far as python's arg parsing. Any runtime checks for inv...
Remove tracking branches no longer on remote
...ll commands (like this one) require ! at the beginning. This works for me: test = "!git fetch -p && for branch in `git branch -vv | grep ': gone]' | awk '{print $1}'`; do git branch -D $branch; done"
– jason.rickman
May 24 '18 at 17:40
...
What's in an Eclipse .classpath/.project file?
..., then you should be OK with adding .classpath to .gitignore but I haven't tested it myself.
– Isaac
Sep 20 '19 at 4:47
2
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What is the difference between “screen” and “only screen” in media queries?
...to make sure it is not interpreted as
media="screen"
It would be a good test for someone with access to a device lab.
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C++ valarray vs. vector
...ce. Although the exact performance improvement undoubtedly varies, a quick test with simple code shows around a 2:1 improvement in speed, compared to identical code compiled with the "standard" implementation of valarray.
So, while I'm not entirely convinced that C++ programmers will be starting to...
pandas: How do I split text in a column into multiple rows?
...25 F01 300 1:13:37:1,13
If in column are NOT NaN values, the fastest solution is use list comprehension with DataFrame constructor:
df = pd.DataFrame(['a b c']*100000, columns=['col'])
In [141]: %timeit (pd.DataFrame(dict(zip(range(3), [df['col'].apply(lambda x : x.split(' ')[i]) for i ...
How do you make a web application in Clojure? [closed]
...ra's component (I think you are supposed to use the reload interceptor)
no testing facility for async interceptors
requires buy-in (?)
Aleph
Pro (3):
Performant
backpressure
Websocket/SSE support when returning a manifold stream
Cons (1):
Low level, do it yourself style (ie. it just gives ...
When do we need to set ProcessStartInfo.UseShellExecute to True?
...Not exectly sure what Windows versions and/or file systems do it this way, tested on Windows 7, NTFS.)
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“Eliminate render-blocking CSS in above-the-fold content”
...Google may ding you for too much above the fold content. But don't assume; test!
Notes
I'm only doing this on my home page for now so people get a FAST render on my most important page.
Your css won't get cached. I'm not too worried though. The second they hit another page on my site, the .css wi...