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this.setState isn't merging states as I would expect

...construct a new state and then call setState() on that: var newSelected = _.extend({}, this.state.selected); newSelected.name = 'Barfoo'; this.setState({ selected: newSelected }); I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
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How do you iterate through every file/directory recursively in standard C++?

...e to the standard. An example, taken straight from the website: bool find_file( const path & dir_path, // in this directory, const std::string & file_name, // search for this name, path & path_found ) // placing path here if found { ...
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append to url and refresh page

... a URL in different browsers? This is my suggested approach: function URL_add_parameter(url, param, value){ var hash = {}; var parser = document.createElement('a'); parser.href = url; var parameters = parser.search.split(/\?|&/); for(var i=0; i < paramete...
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Get the current git hash in a Python script

... git describe --always will fallback to the last commit if no tags are found – Leonardo Mar 6 '15 at 16:38 5 ...
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Reading header data in Ruby on Rails

..."Cookie"] New way: request.headers["HTTP_COOKIE"] To get a Hash with all headers of the request. request.headers share | improve this answer | follow |...
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How to call a JavaScript function from PHP?

How to call a JavaScript function from PHP? 10 Answers 10 ...
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How do I insert datetime value into a SQLite database?

...ient method, but I tend to forgo strong datatypes in SQLite since they are all essentially dumped in as strings anyway. I've written a thin C# wrapper around the SQLite library before (when using SQLite with C#, of course) to handle insertions and extractions to and from SQLite as if I were dealin...
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Convert Python dictionary to JSON array

... If you are fine with non-printable symbols in your json, then add ensure_ascii=False to dumps call. >>> json.dumps(your_data, ensure_ascii=False) If ensure_ascii is false, then the return value will be a unicode instance subject to normal Python str to unicode coercion rules in...
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Registry Key '…' has value '1.7', but '1.6' is required. Java 1.7 is Installed and the Registry is P

... one of the server admins "updated" our Java to an older version and uninstalled the one we were using. Don't ask me why, I don't know. I re-installed Java 1.7 and uninstalled 1.6 along with the JREs. ...
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VS 2010 Test Runner error “The agent process was stopped while the test was running.”

... exception occurs in a finalizer on a type, and that finalizer runs before all the tests has finished, Visual Studio will give the error I was facing; without any further explanation, and on random tests. – driis May 25 '10 at 14:14 ...