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Is log(n!) = Θ(n·log(n))?
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Rem>me m>mber that
log(n!) = log(1) + log(2) + ... + log(n-1) + log(n)
You can get the upper bound by
log(1) + log(2) + ... + log(n) <= log(n) + log(n) + ... + log(n)
= n*log(n)
And you can...
Elastic Search: how to see the indexed data
I had a problem with ElasticSearch and Rails, where som>me m> data was not indexed properly because of attr_protected. Where does Elastic Search store the indexed data? It would be useful to check if the actual indexed data is wrong.
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How do I get a list of all the duplicate items using pandas in python?
I have a list of items that likely has som>me m> export issues. I would like to get a list of the duplicate items so I can manually compare them. When I try to use pandas duplicated m>me m>thod , it only returns the first duplicate. Is there a a way to get all of the duplicates and not just the first one?...
twitter-bootstrap vs jquery-mobile [closed]
I'm wondering if som>me m>one can give som>me m> advice as to which is 'better'. Twitter-bootstrap or JQuery mobile?
5 Answers
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Length of a JavaScript object
...ipt that you don't add things to Object.prototype, because it can break enum>me m>rations in various libraries. Adding m>me m>thods to Object is usually safe, though.
Here's an update as of 2016 and widespread deploym>me m>nt of ES5 and beyond. For IE9+ and all other modern ES5+ capable browsers, you can use O...
CSS selector - elem>me m>nt with a given child [duplicate]
I'm looking to make a selector which will select all elem>me m>nts if they have a specific child elem>me m>nt. For example, select all <div> with a child <span> .
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Adding a newline into a string in C#
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Use Environm>me m>nt.NewLine whenever you want in any string. An example:
string text = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";
text = text.Replace("@", "@" + System.Environm>me m>nt.NewLine);
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How to communicate between ifram>me m> and the parent site?
The website in the ifram>me m> isn't located in the sam>me m> domain , but both are mine, and I would like to communicate between the ifram>me m> and the parent site. Is it possible?
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Installing Ruby Gem in Windows
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I recomm>me m>nd you just use rubyinstaller
It is recomm>me m>nded by the official Ruby page - see https://www.ruby-lang.org/en/downloads/
Ways of Installing Ruby
We have several tools on each major platform to install Ruby:
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How to “inverse match” with regex?
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. doesn't match \n by default (som>me m> languages [eg Perl] allow you to switch on that behaviour, but by default . matches everything BUT \n).
– Dan
Oct 2 '08 at 20:36
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