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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
...built an entire library class once with everything surrounded by try catch blocks once and was appalled to see the debug output which contained a seperate line for every single one of over 600 exceptions!
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Get exit code of a background process
... <n> waits until the process with PID <n> is complete (it will block until the process completes, so you might not want to call this until you are sure the process is done), and then returns the exit code of the completed process.
2, 3: ps or ps | grep " $! " can tell you whether the pro...
What is the proper way to re-throw an exception in C#? [duplicate]
...on as the exception type looked for. It's the only two bugs that the catch block can possibly have.
Now. I still agree that most of the time you either want a plain throw; or you want to construct your own exception to more directly match the problem from the perspective of the method in question. ...
Disable Interpolation when Scaling a
...lgorithm yourself for the job. Each pixel of the first image becomes a 5x5 block of pixels on the new image. It wouldn't be too hard to do with imagedata.
But Canvas and CSS alone won't help you here for scaling one to the other with the exact effect you desire.
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How to wait for several Futures?
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p.future
}
Then you can Await on that resulting Future if you want to block, or just map it into something else.
The difference with for comprehension is that here you get the error of the first to fail, whereas with for comprehension you get the first error in traversal order of the input col...
CSS background image alt attribute
.../
*text-indent: -9999px;
}
.ir:before {
content: "";
display: block;
width: 0;
height: 150%;
}
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MediaNotification 媒体通知扩展：管理媒体播放器通知，支持播放控制 · Ap...
...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 切换 目录 在线 客服 ...
How to create a drop shadow only on one side of an element?
... height: 1px;
margin-top: 88px;
margin-left: -75px;
display: block;
position: absolute;
left: 50%;
z-index: -1;
-webkit-box-shadow: 0px 0px 8px 2px #000000;
-moz-box-shadow: 0px 0px 8px 2px #000000;
box-shadow: 0px 0px 8px 2px #000000;
}
UPDATE 2
A...
How to cast int to enum in C++?
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this solution worked in case compiler option blocked static_cast<> (semantic check). Not that it makes sense to me, but still neat.
– Mr Buisson
Nov 27 '19 at 12:29
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How to send an email with Python?
...pen(textfile, 'rb') as fp:. The explicit close can be dropped, as the with block will close the file even if an error occurs inside it.
– jpmc26
Feb 21 '14 at 19:57
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