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Meaning of acronym SSO in the context of std::string
...ng malloc / new) are generally much faster than those involving the free store ("the heap", which are variables that are created using new). However, the size of automatic arrays is fixed at compile time, but the size of arrays from the free store is not. Moreover, the stack size is limited (typical...
How do I check if a directory exists? “is_dir”, “file_exists” or both?
I want to create a directory if it does'nt exist already.
12 Answers
12
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How to implement has_many :through relationships with Mongoid and mongodb?
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Mongoid doesn't have has_many :through or an equivalent feature. It would not be so useful with MongoDB because it does not support join queries so even if you could reference a related collection via another it would still require multiple queries.
https://githu...
counting number of directories in a specific directory
How to count the number of folders in a specific directory. I am using the following command, but it always provides an extra one.
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Adding Http Headers to HttpClient
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@Talon That's what 406 means. The client asked for a media type that the server doesn't support. If you don't care what media type you get, then don't ask for one. The OP was simply asking how to add headers to a request. I just picked a random example.
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How to get week number in Python?
...thod, which returns a tuple containing the calendar week:
>>> import datetime
>>> datetime.date(2010, 6, 16).isocalendar()[1]
24
datetime.date.isocalendar() is an instance-method returning a tuple containing year, weeknumber and weekday in respective order for the given date ins...
How to suppress Pandas Future warning ?
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Found this on github...
import warnings
warnings.simplefilter(action='ignore', category=FutureWarning)
import pandas
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Is it okay to use now?
I'm working on a mobile phone web app and I have several text fields that could benefit from <input type="tel"/> . iPhones will adjust the keyboard for the user, but I'm worried about breaking backwards compatibility. What I'm hoping is that browsers/phone that support this can assist the use...
How to replace all occurrences of a character in string?
...ntain such function but you could use stand-alone replace function from algorithm header.
#include <algorithm>
#include <string>
void some_func() {
std::string s = "example string";
std::replace( s.begin(), s.end(), 'x', 'y'); // replace all 'x' to 'y'
}
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Measure elapsed time in Swift
How can we measure the time elapsed for running a function in Swift? I am trying to display the elapsed time like this: "Elapsed time is .05 seconds". Saw that in Java , we can use System.nanoTime(), is there any equivalent methods are available in Swift to accomplish this?
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