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Reducing the space between sections of the UITableView
.... I did already try to return 0 for -tableView:heightForFooterInSection: and -tableView:heightForHeaderInSection: but that doesn't change anything.
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Finding sum of elements in Swift array
...the sum of an array of integers in swift?
I have an array called multiples and I would like to know the sum of the multiples.
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What is the advantage of GCC's __builtin_expect in if else statements?
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Ohh i understand. So you mean since there is a high probability for x = 0 so the bar is given first. And foo, is defined later since it's chances (rather use probability) is less, right?
– kingsmasher1
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Are tuples more efficient than lists in Python?
Is there any performance difference between tuples and lists when it comes to instantiation and retrieval of elements?
8 A...
Applying a function to every row of a table using dplyr?
...it useful to use adply for scalar functions that I have to apply to each and every row.
7 Answers
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How to show SQL queries run in the Rails console?
... can I see the actual database queries being run so I can gain more understanding of what is happening?
6 Answers
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How do I get the directory that a program is running from?
Is there a platform-agnostic and filesystem-agnostic method to obtain the full path of the directory from where a program is running using C/C++? Not to be confused with the current working directory. (Please don't suggest libraries unless they're standard ones like clib or STL.)
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Can the Unix list command 'ls' output numerical chmod permissions?
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For creating it as an alias (example below: 'cls' command), use: alias cls="ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr(\$1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf(\"%0o \",k);print}'"
– danger89
Mar 6 '14 at 16:15
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Generate array of all letters and digits
Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily?
7 Answers
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Set transparent background using ImageMagick and commandline prompt
Suppose you have any image (PNG or JPG).
This image has a white background and I need to make this background transparent.
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