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Why use a prime number in hashCode?
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31 is chosen based on the idea that most implementations have factorizations of relatively small primes. 2s, 3s and 5s usually. It may start at 10 and grow 3X when it gets too full. The size is rarely entirely random. And even if it were, 30/31 are no...
What's the state of the art in email validation for Rails?
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I'm tempted to use your validation, but I have no idea where you got it from or how you made it. Can you tell us?
– Mauricio Moraes
Oct 1 '14 at 14:26
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TypeError: got multiple values for argument
...blem when calling a function, I can't figure out what it could be for. Any ideas?
7 Answers
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Rails extending ActiveRecord::Base
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I like this idea because is a standard way of doing it but... I get an error Table 'moboolo_development.abstract_models' doesn't exist: SHOW FIELDS FROM abstract_models. Where should I put it?
– xpepermint
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How to remove ASP.Net MVC Default HTTP Headers?
...l Gates announcing "secure by default" in 2003 - whatever happened to that idea?
– mike nelson
Oct 18 '17 at 18:22
2
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How do HttpOnly cookies work with AJAX requests?
... - it's one of those proprietary browser extensions that was a really neat idea.
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Subset of rows containing NA (missing) values in a chosen column of a data frame
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@Jonathan : Two distinct ideas here, the topic you cite says "[" should be prefered on "subset", but we were talking about the "na.strings" argument in read.table(), my subset was here only to visualize the effects.
– maressyl
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What happens if I define a 0-size array in C/C++?
...ntax of a FAM is:
struct Array {
size_t size;
int content[];
};
The idea is that you would then allocate it so:
void foo(size_t x) {
Array* array = malloc(sizeof(size_t) + x * sizeof(int));
array->size = x;
for (size_t i = 0; i != x; ++i) {
array->content[i] = 0;
}
}
You...
How to get current path with query string using Capybara
...ted this answer to reflect modern conventions in capybara. I think this is ideal since this is the accepted answer, and what many people are being referred to when looking for a solution. With that said, the correct way to check the current path is to use the has_current_path? matcher provided by Ca...
Explain the concept of a stack frame in a nutshell
It seems that I get the idea of call stack in programming language design. But I cannot find (probably, I just don't search hard enough) any decent explanation of what stack frame is.
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