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Get all keys of an NSDictionary as an NSArray

... 184 Just use NSArray*keys=[dict allKeys]; In general, if you wonder if a specific class has a sp...
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File extension for PowerShell 3

... answered Aug 24 '12 at 11:41 Mike ShepardMike Shepard 15.2k66 gold badges4545 silver badges6060 bronze badges ...
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How to save as a new file and keep working on the original one in Vim?

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Select first 4 rows of a data.frame in R

How can I select the first 4 rows of a data.frame : 5 Answers 5 ...
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How to add an extra column to a NumPy array

...) b = np.zeros((N,N+1)) b[:,:-1] = a And timings: In [23]: N = 10 In [24]: a = np.random.rand(N,N) In [25]: %timeit b = np.hstack((a,np.zeros((a.shape[0],1)))) 10000 loops, best of 3: 19.6 us per loop In [27]: %timeit b = np.zeros((a.shape[0],a.shape[1]+1)); b[:,:-1] = a 100000 loops, best of ...
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How do I set cell value to Date and apply default Excel date format?

... 174 http://poi.apache.org/spreadsheet/quick-guide.html#CreateDateCells CellStyle cellStyle = wb.cre...
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'const string' vs. 'static readonly string' in C#

...ver change. – LukeH Jul 6 '10 at 23:49 3 @LukeH never, ever, ever is a little strong. I can't thi...
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Unstage a deleted file in git

... Patrick M 9,00688 gold badges5454 silver badges9494 bronze badges answered Mar 6 '12 at 20:46 twalbergtwalberg ...
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space between divs - display table-cell

... answered Aug 20 '13 at 22:47 Hashem QolamiHashem Qolami 84.2k2323 gold badges123123 silver badges142142 bronze badges ...