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What does Python's eval() do?
...one}, exposed_methods)
TypeError: 'NoneType' object is not subscriptable
Now we have the cpu_count function available while still blocking everything we do not want. In my opinion, this is super powerful and clearly from the scope of the other answers, not a common implementation. There are numero...
Understanding promises in Node.js
...t play well with some real world scenarios
– Mariusz Nowak
Nov 8 '12 at 10:15
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Why is lazy evaluation useful?
...ort (filter (< x) xs) ++ [x] ++ quickSort (filter (>= x) xs)
If we now want to find the minimum of the list, we can define
minimum ls = head (quickSort ls)
Which first sorts the list and then takes the first element of the list. However, because of lazy evaluation, only the head gets comp...
Pattern to avoid nested try catch blocks?
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I know my answer is not the most efficient code, but then again using try/catch blocks for this kind of thing is not the best way to go anyway. Unfortunately, the OP is using a 3rd party library and has to do the best they can t...
Why should I care about lightweight vs. annotated tags?
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The big plus of an annotated tag is that you know who created it. Just like with commits, sometimes it's nice to know who did it. If you're a developer and you see that v1.7.4 has been tagged (declared ready) and you're not so sure, who do you talk to? The person whose n...
How can I create a keystore?
...od shout on defining -keysize 2048 rather than default 1024 personally I'm now using 4096
– scottyab
Sep 25 '13 at 9:13
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What are the differences between various threading synchronization options in C#?
..."Using Other .Net synchronization classes"- some of the others you should know about:
ReaderWriterLock - allows multiple readers or a single writer (not at the same time)
ReaderWriterLockSlim - like above, lower overhead
ManualResetEvent - a gate that allows code past when open
AutoResetEvent - as...
Should I always return IEnumerable instead of IList?
...euse out of a component as possible. On the other hand, since you already know exactly what kind of object you have handy, there's not much point in masking it.
– Mel
Oct 14 '11 at 17:12
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Postgresql 9.2 pg_dump version mismatch
...sr/lib/postgresql/9.6/bin/pg_dump
/usr/lib/postgresql/9.6/bin/pg_dumpall
Now just use the path of the desired version in the command
/usr/lib/postgresql/9.6/bin/pg_dump books > books.out
share
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Why do people hate SQL cursors so much? [closed]
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@delm: thanks for the link, now i understand the phrase even less!
– Steven A. Lowe
Nov 13 '08 at 17:20
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