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When should one use HTML entities?
...een confusing me for some time. With the advent of UTF-8 as the de-facto standard in web development I'm not sure in which situations I'm supposed to use the HTML entities and for which ones should I just use the UTF-8 character. For example,
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How do I set up email confirmation with Devise?
...et up Devise's signup confirmation email from scratch (in both development and production), i.e. if you don't have Action Mailer set up?
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How do I change the background color of a plot made with ggplot2
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See here for more theme details Quick reference sheet for legends, axes and themes.
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How do I import global modules in Node? I get “Error: Cannot find module ”?
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I am reading this and can not believe my eyes. So if I install, say express, and then have 20 projects to build on top of express, I need to install it 20 times, for each of them, in every project folder, over and over? I don't have much exper...
Difference between HBase and Hadoop/HDFS
This is kind of naive question but I am new to NoSQL paradigm and don't know much about it. So if somebody can help me clearly understand difference between the HBase and Hadoop or if give some pointers which might help me understand the difference.
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pass **kwargs argument to another function with **kwargs
I do not understand the following example, lets say I have these functions:
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Can I do a synchronous request with volley?
...t(); // this will block
} catch (InterruptedException e) {
// exception handling
} catch (ExecutionException e) {
// exception handling
}
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What's the difference between Perl's backticks, system, and exec?
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exec
executes a command and never returns.
It's like a return statement in a function.
If the command is not found exec returns false.
It never returns true, because if the command is found it never returns at all.
There is also no point ...
Is there a library function for Root mean square error (RMSE) in python?
...lso known as MSE, RMD, or RMS. What problem does it solve?
If you understand RMSE: (Root mean squared error), MSE: (Mean Squared Error) RMD (Root mean squared deviation) and RMS: (Root Mean Squared), then asking for a library to calculate this for you is unnecessary over-engineering. All these me...
Throw keyword in function's signature
...ce this, so it has to be checked at runtime, which is usually undesirable. And it is not well supported in any case. (MSVC ignores exception specifications, except throw(), which it interprets as a guarantee that no exception will be thrown.
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