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if/else in a list comprehension
... because if my l = [ 2, 3, 4, 5] then [x if x % 2 == 0 for x in l] give me error whereas [x if x % 2 == 0 else 200 for x in l] works. Yes I know to filter it I should write [ x for x in l if x % 2 == 0]. Sorry for botheration. Thanks for your answer.
– Grijesh Chauhan
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.NET / C# - Convert char[] to string
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It is weird because I get compile error if I do not define the type <char>
– sky91
Aug 4 '17 at 1:47
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How to rsync only a specific list of files?
... has anything starting with .. rsync appears to ignore the .. giving me an error like rsync: link_stat "/home/michael/test/subdir/test.txt" failed: No such file or directory (in this case running from the "test" dir and trying to specify "../subdir/test.txt" which does exist.
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How to decide font color in white or black depending on background color?
...ove.
The formula given for contrast in the W3C Recommendations is (L1 + 0.05) / (L2 + 0.05), where L1 is the luminance of the lightest color and L2 is the luminance of the darkest on a scale of 0.0-1.0. The luminance of black is 0.0 and white is 1.0, so substituting those values lets you determine ...
Rails formatting date
...m/%d/%y)
– RajeshM
Jun 10 '15 at 21:05
1
Use %A if you want the day of the week, e.g. "Wednesday"...
How to watch for array changes?
... eventName).toLowerCase();
if (!(eventName in _handlers)) throw new Error("Invalid event name.");
if (typeof handler !== "function") throw new Error("Invalid handler.");
_handlers[eventName].push(handler);
}
});
Object.defineProperty(_self, "removeEventListener", {
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Parse usable Street Address, City, State, Zip from a string [closed]
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I've done a lot of work on this kind of parsing. Because there are errors you won't get 100% accuracy, but there are a few things you can do to get most of the way there, and then do a visual BS test. Here's the general way to go about it. It's not code, because it's pretty academic to write...
腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...架开发的分布式NoSQL存储系统，数据采用内存存储，支持连接后端DB实现数据持久化。DCache采用集群模式，具有高扩展、高可用的特点。
https://github.com/Tencent/MMKV MMKV 是基于 mmap 内存映射的 key-value 组件，底层序列化/反序列化...
What is an xs:NCName type and when should it be used?
...:NCName
– WeizhongTu
Mar 5 '18 at 7:05
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Using LIMIT within GROUP BY to get N results per group?
...imes 5 (first 5 years). The strings are truncated rather than throwing an error, so watch for warnings such as 1054 rows in set, 789 warnings (0.31 sec).
– Timothy Johns
Mar 15 '18 at 23:35
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