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NSDictionary - Need to check whether dictionary contains key-value pair or not

... | edited Dec 20 '17 at 6:18 Tony Adams 67311 gold badge99 silver badges2828 bronze badges an...
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MongoDB: How to query for records where field is null or not set?

... | edited Aug 31 '16 at 0:31 answered May 14 '12 at 21:55 ...
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How to undo 'git reset'?

...nd want to undo it. My reflog looks like this: $ git reflog 3f6db14 HEAD@{0}: HEAD~: updating HEAD d27924e HEAD@{1}: checkout: moving from d27924e0fe16776f0d0f1ee2933a0334a4787b4c [...] The first line says that HEAD 0 positions ago (in other words, the current position) is 3f6db14; it was obtaine...
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optional parameters in SQL Server stored proc?

I'm writing some stored procs in SQL Server 2008, and wondered if the concept of optional input parameters is possible here? ...
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Transpose a data frame

... 109 You'd better not transpose the data.frame while the name column is in it - all numeric values w...
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How can I set the request header for curl?

... answered Nov 18 '10 at 7:27 Mads MobækMads Mobæk 29.5k2020 gold badges6464 silver badges7575 bronze badges ...
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Reusable library to get human readable version of file size?

...unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']: if abs(num) < 1024.0: return "%3.1f%s%s" % (num, unit, suffix) num /= 1024.0 return "%.1f%s%s" % (num, 'Yi', suffix) Supports: all currently known binary prefixes negative and positive numbers numbers larger than...
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Difference between two DateTimes C#?

... | edited May 10 '09 at 15:39 answered May 10 '09 at 14:11 ...
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IIS: Idle Timeout vs Recycle

...idle timeout doesn't matter because nobody is logged in anyway and figure 20 minutes an no action they are not still "shopping" The positive would be get rid of the idle time out as your website will respond faster on its "first" response if its not a highly active site where a user would have to w...
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Difference between jQuery’s .hide() and setting CSS to display: none

... 209 From the jQuery page about .hide(): "The matched elements will be hidden immediately, with ...