大约有 43,000 项符合查询结果（耗时：0.0420秒） [XML]
How to get the index of an item in a list in a single step?
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@kai: I think you need to read up on how LINQ works, basically. It's too complicated to explain in detail in a comment. However... this is only iterating over the source collection once. LINQ sets up a pipeline, which lazily transforms the input seque...
AngularJS directive with default options
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You can use compile function - read attributes if they are not set - fill them with default values.
.directive('pagination', ['$parse', 'paginationConfig', function($parse, config) {
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controller: 'PaginationController',
compile: function(el...
Code Golf: Collatz Conjecture
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You should read this in 2D. <>^v are arrows that change direction the "program counter" wanders. | and _ are conditionals that go up/down or left/right depending on whether the value on stack is true or false. The whole "code aren...
How to write a JSON file in C#?
... states that:
Json.NET has always been memory efficient, streaming the reading and writing large documents rather than loading them entirely into memory, but I was able to find a couple of key places where object allocations could be reduced...... (now) Json.Net (6.0) allocates 8 times less memo...
How to download/checkout a project from Google Code in Windows?
...ng this project "svn checkout myproject.googlecode.com/svn/trunk myproject-read-only" you would ONLY use "myproject.googlecode.com/svn/trunk" as the URL, after the space is just a title and I feel this might be helpful for someone who comes into the same confusion
– zfb
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How do I get an animated gif to work in WPF?
... ((GifImage)sender).StopAnimation();
}
}
public static readonly DependencyProperty FrameIndexProperty =
DependencyProperty.Register("FrameIndex", typeof(int), typeof(GifImage), new UIPropertyMetadata(0, new PropertyChangedCallback(ChangingFrameIndex)));
static void C...
Deploying just HTML, CSS webpage to Tomcat
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@VandeGraff, that could be because you do not have read permissions. Usually files put under /usr/* have permission issues.... I put mine on /home/myAccount/installations/tomcat/webapps/myApp/index.html
– kholofelo Maloma
Jul 14 '16 at 1...
Swift - How to convert String to Double
...ishUKLocale
let englishUKCurrency = formatter.number(from: "£9,999.99")
Read more on my blog post about converting String to Double types (and currency).
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psycopg2: insert multiple rows with one query
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Just confirmed this improvement myself. From what I've read psycopg2's executemany doesn't do anything optimal, just loops and does many execute statements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nelson
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What are the best Haskell libraries to operationalize a program? [closed]
... 100.0% of total user, 0.0% of total elapsed
You can get this in machine-readable format too:
$ ./A +RTS -t --machine-readable
[("bytes allocated", "64952")
,("num_GCs", "1")
,("average_bytes_used", "43784")
,("max_bytes_used", "43784")
,("num_byte_usage_samples", "1")
,("peak_megabytes_al...