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How can I create an object and add attributes to it?
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You could use my ancient Bunch recipe, but if you don't want to make a "bunch class", a very simple one already exists in Python -- all functions can have arbitrary attributes (including lambda functions). So, the following works:
obj = someobject
obj.a = lambda: None
seta...
What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i
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@KenThompson the problem is Webrick, not Rails. Webrick do not support keep-alive connections and thus raises the warning/issue we're seeing. It is recommended you use a proper/better webserver (like thin or passenger standalone) for web. Upcoming versions of Ruby will fix this is...
What is the difference between varchar and nvarchar?
...e Unicode internally. By using nvarchar rather than varchar, you can avoid doing encoding conversions every time you read from or write to the database. Conversions take time, and are prone to errors. And recovery from conversion errors is a non-trivial problem.
If you are interfacing with an appli...
sort object properties and JSON.stringify
...the objects are listed in different orders (their creation order?). When I do JSON.stringify() on the array and save it, a diff shows the properties getting listed in different orders, which is annoying when trying to merge the data further with diff and merging tools.
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How to globally replace a forward slash in a JavaScript string?
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The following would do but only will replace one occurence:
"string".replace('/', 'ForwardSlash');
For a global replacement, or if you prefer regular expressions, you just have to escape the slash:
"string".replace(/\//g, 'ForwardSlash');
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How to write trycatch in R
I want to write trycatch code to deal with error in downloading from the web.
5 Answers
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Printing tuple with string formatting in Python
...rmat method). I've tried printing a tuple using the {0:s} qualifier but it doesn't work. So, what's the full qualifier for something like a tuple?
– Ray
Mar 24 '16 at 11:53
1
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Best Practices for Laravel 4 Helpers and Basic Functions?
...ace to put a global function in Laravel 4. For example, date formatting. I don't think making a facade is worth it as facades are too modular. I've read articles about creating a library folder and storing classes there but that also seems like a lot for a simple function. Shouldn't a 'tool' like th...
Change default global installation directory for node.js modules in Windows?
In my windows installation PATH includes C:\Program Files\nodejs , where executable node.exe is. I'm able to launch node from the shell, as well as npm . I'd like new executables to be installed in C:\Program Files\nodejs as well, but it seems impossible to achieve.
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C state-machine design [closed]
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State machines that I've designed before (C, not C++) have all come down to a struct array and a loop. The structure basically consists of a state and event (for look-up) and a function that returns the new state, something like:
typedef struct {
int st;
int ev;
int (*fn)(void);
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