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Algorithm to return all combinations of k elements from n
...rse memory and pretty quickly, you'll have problems by 20 elements in your set -- 20C3 = 1140. And if you want to iterate over the set it's best to use a modified gray code algorithm so you aren't holding all of them in memory. These generate the next combination from the previous and avoid repetiti...
How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
...ave the Visual Studio Productivity Power Tools 2013 installed. Go into its settings and turn off "Fix Mixed Tabs"...
Tools -> Options -> Productivity Power Tools -> Turn Extensions On/Off
If you have the default VS settings, tabs in the editor are converted to spaces. So (in theory) if...
JavaScript :How to set a Conditional Break Point in Chrome debugger tools
...the marker of the breakpoint and select "Edit breakpoint..." there you can set the condition.
From Chrome Developer Tools on Breakpoints at developers.google.com (Emphasis mine):
Note: All the breakpoints you have set appear under Breakpoints in the right-hand sidebar. Clicking on the entry jum...
Notepad++: How to automatically set Language as Xml when load files
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You can do this by using the Style Configurator (Settings Menu):
This image shows the php language, but it works for any language you want to map
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Set attribute without value
How do I set a data attribute without adding a value in jQuery? I want this:
5 Answers
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How to open, read, and write from serial port in C?
...om tcgetattr. You cannot zero-out a struct termios, configure it, and then set the tty with tcsetattr. If you use the zero-out method, then you will experience unexplained intermittent failures, especially on the BSDs and OS X. "Unexplained intermittent failures" include hanging in read(3).
#includ...
django urls without a trailing slash do not redirect
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check your APPEND_SLASH setting in the settings.py file
more info in the django docs
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AJAX post error : Refused to set unsafe header “Connection”
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Remove these two lines:
xmlHttp.setRequestHeader("Content-length", params.length);
xmlHttp.setRequestHeader("Connection", "close");
XMLHttpRequest isn't allowed to set these headers, they are being set automatically by the browser. The reason is that by m...
emacs zoom in/zoom out
...n file so that I can do Ctrl+Scroll to zoom in/out. It is useful.
(global-set-key [C-mouse-4] 'text-scale-increase)
(global-set-key [C-mouse-5] 'text-scale-decrease)
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UITableView, Separator color where to set?
I have added a UITableView in IB and set the "delegate" and "datasource" and all is working well. What I wanted to do next was change the separator color, but the only way I could find to do this was to add the method to one of the delegate callbacks, is there a better place I should put this?
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