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scala vs java, performance and memory? [closed]
...++] = map.get(s);
}
Whew! Hard work. In Scala, the most compact way to do the same thing is:
val bigEnough = array.filter(_.length > 2).flatMap(mapping.get)
Easy! But, unless you're fairly familiar with how the collections work, what you might not realize is that this way of doing this cr...
Detecting that the browser has no mouse and is touch-only
...when your noble user decides wants to unplug his mouse and go full touch.. do you wait for him to touch your now crammed interface, then change it right after he's made the effort to pinpoint your now crowded UI?
In bullet form, quoting stucox at https://github.com/Modernizr/Modernizr/issues/869#is...
How to get a complete list of object's methods and attributes?
does not return pattern as one of the lists's elements. Namely it returns:
5 Answers
5...
Change the Target Framework for all my projects in a Visual Studio Solution
...
You can do that using Scott Dorman's Visual Studio macro available on CodeProject:
Visual Studio 2010 and Target Framework Version
Below is the code, download it to your <UserProfile>\Documents\Visual Studio 2010\Projects...
JavaScript OOP in NodeJS: how?
... that for performance (e.g. inlining the below is impossible)
//you should do
//method.$getAge = _super.getAge;
//and then use this.$getAge() instead of super()
method.getAge = function() {
return _super.getAge.call(this);
};
module.exports = Mouse;
Also you can consider "Method borrowing" in...
Getting parts of a URL (Regex)
...ld then further parse the host ('.' delimited) quite easily.
What I would do is use something like this:
/*
^(.*:)//([A-Za-z0-9\-\.]+)(:[0-9]+)?(.*)$
*/
proto $1
host $2
port $3
the-rest $4
the further parse 'the rest' to be as specific as possible. Doing it in one regex is, well, a bit craz...
A generic error occurred in GDI+, JPEG Image to MemoryStream
... so that I have been unable to find an answer to my problem as my scenario doesn't fit. An exception gets thrown when I save the image to the stream.
...
SQL SELECT speed int vs varchar
...wever, that means more joining operations are required for each query. How do i determine if this trade-off is worth it? Thank you!
– AiRiFiEd
Mar 6 '17 at 8:45
2
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C# operator overload for `+=`?
I am trying to do operator overloads for += , but I can't. I can only make an operator overload for + .
10 Answers
...
How to convert DateTime to/from specific string format (both ways, e.g. given Format is “yyyyMMdd”)?
... with the format "ddMMyyyy" and want to convert it to "yyyyMMdd" you could do like this:
DateTime dt = DateTime.ParseExact(dateString, "ddMMyyyy",
CultureInfo.InvariantCulture);
dt.ToString("yyyyMMdd");
...