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Python: Get the first character of the first string in a list?

...: "Losing your Loops, Fast Numerical Computing with NumPy" by PyCon 2015: https://youtu.be/EEUXKG97YRw?t=22m22s "NumPy Beginner | SciPy 2016 Tutorial" by Alexandre Chabot LeClerc: https://youtu.be/gtejJ3RCddE?t=1h24m54s sh...
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Checking if a field contains a string

...on, like shown below: db.users.findOne({"username" : /.*son.*/i}); See: http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-RegularExpressions share | improve this answer ...
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Should I put input elements inside a label element?

...ngs start and end Bootstrap checkbox v3.3 examples use the input inside: http://getbootstrap.com/css/#forms Might be wise to follow them. But they changed their minds in v4.0 https://getbootstrap.com/docs/4.0/components/forms/#checkboxes-and-radios so I don't know what is wise anymore: Checkbo...
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How to split a string at the first `/` (slash) and surround part of it in a ``?

...[0] + "</span></br>" + arr[1]+"/"+arr[2]); <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="date">23/05/2013</div> Fiddle When you split this string ---> 23/05/2013 on / var myString = "23/05/2013";...
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How do iOS Push Notifications work?

...load, a globally-unique device token, and other delivery information to an HTTP/2 request. For information about device tokens, see APNs-to-Device Connection Trust and Device Tokens. For information about the HTTP/2 request format, and the possible responses and errors from APNs, see Communicating w...
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kernel stack and user space stack

... each thread has its own stack, including both user and kernel threads. http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-10/3194.html Why kernel stack is used? So when we are in kernel mode, stack kind of mechanism is necessary for dealing with function calls, local variables similar to us...
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Rails 3: I want to list all paths defined in my rails application

...er found that, there is an official way to see all the routes, by going to http://localhost:3000/rails/info/routes. Official docs: https://guides.rubyonrails.org/routing.html#listing-existing-routes Though, it may be late, But I love the error page which displays all the routes. I usually try to ...
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Get value of dynamically chosen class constant in PHP

... $id = constant("ThingIDs::$thing"); http://php.net/manual/en/function.constant.php share | improve this answer | follow ...
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How do I use JDK 7 on Mac OSX?

I would like to use the WatchService API as mentioned in this link: http://download.oracle.com/javase/tutorial/essential/io/notification.html ...
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What is the meaning of the prefix N in T-SQL statements and when should I use it?

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