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boost::flat_map and its performance compared to map and unordered_map
...y outperform low-complexity containers for small number of types (like map vs. vector, because their cache locality is good, but map fragments the memory). And then at some crossing point, they will lose, because the contained overall size starts to "leak" to main memory and cause cache misses, that...
how to get the host url using javascript from the current page
... you should always use concat. In example var a = 1 + 2 + " should be 12"; vs the concat version of this var a = "".concat(1).concat(2).concat(" should be 12");. Using concat will save you a lot of trouble + is for calculation, not concatenation.
– Eric Herlitz
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Get elements by attribute when querySelectorAll is not available without using libraries?
... Aye, +1 for querySelectorAll. A quick jsperf test jsperf.com/custom-vs-selectorall-attributes shows that it's much faster than the accepted answer... unfortunately it's not IE 7 compatible :(
– Sebastien Daniel
Apr 15 '15 at 19:19
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Find the similarity metric between two strings
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See this great answer comparing SequenceMatcher vs python-Levenshtein module. stackoverflow.com/questions/6690739/…
– ssoler
Feb 9 '15 at 13:06
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Redis 的性能幻想与残酷现实 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... antirez. An update on the Memcached/Redis benchmark.
[6] dormando. Redis VS Memcached (slightly better bench).
[7] Mike Perham. Storing Data with Redis.
[8] 温柔一刀. Redis 常见的性能问题和解决方法.
Redis 性能
What does jquery $ actually return?
... that the objects in question are poorly named. "The jQuery Object", aka $ vs "a jQuery Object", aka a "wrapped set".
– Sean McMillan
Jul 6 '11 at 14:24
add a comment
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What's a “static method” in C#?
...ic methods don't. See my blog post: blog.slaks.net/2011/06/open-delegates-vs-closed-delegates.html
– SLaks
Sep 12 '11 at 20:28
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Is there a way to make a DIV unselectable?
... I found at here: msdn.microsoft.com/en-us/library/hh801966(v=vs.85).aspx But I actually tested on IE, and it works correctly.
– KimKha
May 1 '13 at 15:27
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{" was not expected.} Deserializing Twitter XML
...n XmlRoot attribute to the class msdn.microsoft.com/en-us/library/83y7df3e(VS.71).aspx [XmlRoot(Namespace = "www.contoso.com", ElementName = "MyGroupName", DataType = "string", IsNullable=true)]
– david valentine
Oct 12 '09 at 23:55
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Create a matrix of scatterplots (pairs() equivalent) in ggplot2
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community wiki
3 revs, 3 users 88%naught101
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