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What is a Context Free Grammar?

... Good lord, this is one of the best explained answers I've seen on SO. – Rafael Dias da Silva Oct 9 '17 at 17:33 ...
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$on and $broadcast in angular

...ll channel the opposite direction to all the ancestor dom elements. The best way to avoid deciding between $emit or $broadcast is to channel from the $rootScope and use $broadcast to all its children. Which makes our case much easier since our dom elements are siblings. Adding $rootScope and le...
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Is it possible to decrypt MD5 hashes?

... thought in the MD5 hash space. It is no longer considered optimal as the best hash for passwords. – Cheeso Aug 6 '09 at 19:29 12 ...
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Apply multiple functions to multiple groupby columns

...led comment on Ted's answer, plus code/data. Python/pandas is not my first/best, but I found this to read well: df.groupby('group') \ .apply(lambda x: pd.Series({ 'a_sum' : x['a'].sum(), 'a_max' : x['a'].max(), 'b_mean' : x['b'].mean(), 'c_d_prodsum' : (x[...
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Common MySQL fields and their appropriate data types

... @Morgan Tocker: it's the best practice, anything below 255 chars will take the same space. – raveren Sep 10 '10 at 13:05 7 ...
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Given an emacs command name, how would you find key-bindings ? (and vice versa)

...swered Jul 24 '13 at 14:04 Glen BestGlen Best 20.9k22 gold badges5151 silver badges7171 bronze badges ...
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Can I run javascript before the whole page is loaded?

...The load event happens very late in the page load cycle, it's almost never best practice to wait to run your JavaScript until then. But yes, it is an option. I've overhauled the answer for 2020, btw. – T.J. Crowder Jun 1 at 9:11 ...
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Start / Stop a Windows Service from a non-Administrator user account

... This is the best answer. It uses the right tool for the job without hacking around in the registry, translating SIDs, or depending on obscure ACL formatting. Provides all that is needed to get the job done quickly and easily with enough ...
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What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?

...e locations based on affinities (ala data types assigned to columns). The best thing that I'd recommend you do is to : Temporarily forget everything you used to know about standalone database datatypes Read the above link from the SQLite site. Take the types based off of your old schema, and see ...
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What is the advantage of using REST instead of non-REST HTTP?

...courages and in practice it's definitely relevant as it encourages various best practices (discoverability, generic interfaces, cachability, intelligent resource modelling) – Scott Schulthess Jan 21 '15 at 14:21 ...