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Dynamically adding a form to a Django formset with Ajax

...d_more"> <script> $('#add_more').click(function() { cloneMore('div.table:last', 'service'); }); </script> In a javascript file: function cloneMore(selector, type) { var newElement = $(selector).clone(true); var total = $('#id_' + type + '-TOTAL_FORMS').val()...
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How to extract numbers from a string and get an array of ints?

... [ and ] delimites a set of characters to be single matched, i.e., only one time in any order ^ Special identifier used in the beginning of the set, used to indicate to match all characters not present in the delimited set, instead of all characters present in the set. + Between one and unlimited...
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How to concatenate a std::string and an int?

...TLSoft (header-only); most/all platforms safe-ish (you don't use more than one int_to_string() call in a single statement), fast; requires STLSoft (header-only); Windows-only is safe, but slow; requires Poco C++ ; most/all platforms ...
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Simplest way to do a fire and forget method in C#?

I saw in WCF they have the [OperationContract(IsOneWay = true)] attribute. But WCF seems kind of slow and heavy just to do create a nonblocking function. Ideally there would be something like static void nonblocking MethodFoo(){} , but I don't think that exists. ...
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Get the size of the screen, current web page and browser window

...et window width" and the content of this answer was on Google. A big minus one from me. – Maciej Krawczyk Jun 11 '16 at 7:43 2 ...
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What algorithms compute directions from point A to point B on a map?

... Speaking as someone who spent 18 months working at a mapping company, which included working on the routing algorithm... yes, Dijkstra's does work, with a couple of modifications: Instead of doing Dijkstra's once from source to dest, you s...
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What's the idiomatic syntax for prepending to a short python list?

... you insert at the front of a list, python has to move all the other items one space forwards, lists can't "make space at the front". collections.deque (double ended queue) has support for "making space at the front" and is much faster in this case. – fejfo Mar...
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What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?

...les, but custom configuration files with .inc extensions for example, then one strategy you could use would be to add your directory containing all files to PHP's include path (via set_include_path()). And since you require your configuration files as well, you would use spl_autoload_extensions() to...
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Check if full path given

...ion) returns true only if path includes the volume In scenarios like the one the OP posed, it may therefore be more suitable than the conditions in the earlier answers. Unlike the above condition: path == System.IO.Path.GetFullPath(path) throws exceptions rather than returning false in these sce...
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How to format a string as a telephone number in C#

I have a string "1112224444' it is a telephone number. I want to format as 111-222-4444 before I store it in a file. It is on a datarecord and I would prefer to be able to do this without assigning a new variable. ...