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Find size of an array in Perl
...clearer than
say scalar(@array); # Represent @array as a scalar
and
my $size = @array;
say $size;
The latter looks quite clear alone like this, but I find that the extra line takes away from clarity when part of other code. It's useful for teaching what @array does in scalar context, and ma...
How to resize superview to fit all subviews with autolayout?
My understanding of autolayout is that it takes the size of superview and base on constrains and intrinsic sizes it calculates positions of subviews.
...
Error: could not find function … in R
...the "cosvol" function in the "celestial" package from command-line. Unlike my R which is installed from Fedora repository into my Linux system, I have downloaded my "celestial" package in a different directory in my "home". Each time I am requesting the function "cosvol()", it says, "could not find ...
What is the correct way to create a single-instance WPF application?
...t does not require a dependency on the Microsoft.VisualBasic assembly. If my project already had a dependency on that assembly, I would probably advocate using the approach shown in another answer. But as it is, I do not use the Microsoft.VisualBasic assembly, and I'd rather not add an unnecessary...
Frequency table for a single variable
...
Maybe .value_counts()?
>>> import pandas
>>> my_series = pandas.Series([1,2,2,3,3,3, "fred", 1.8, 1.8])
>>> my_series
0 1
1 2
2 2
3 3
4 3
5 3
6 fred
7 1.8
8 1.8
>>> counts = my_series.value_counts()
>&g...
Why is jquery's .ajax() method not sending my session cookie?
...cally from AJAX response (citation: http://aleembawany.com/2006/11/14/anatomy-of-a-well-designed-ajax-login-experience/)
Why?
You cannot get value of the cookie from response to set it manually (http://www.w3.org/TR/XMLHttpRequest/#dom-xmlhttprequest-getresponseheader)
I'm confused..
There should...
Gulps gulp.watch not triggered for new or deleted files?
...r deleted files now. It did not when the question was asked.
The rest of my answer still stands: gulp-watch is usually a better solution because it lets you perform specific actions only on the files that have been modified, while gulp.watch only lets you run complete tasks. For a project of a re...
Git Remote: Error: fatal: protocol error: bad line length character: Unab
I set up a git server and want now to push initially my repo from the client.
I used git push origin master and get this error message:
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PDOException SQLSTATE[HY000] [2002] No such file or directory
I believe that I've successfully deployed my (very basic) site to fortrabbit, but as soon as I connect to SSH to run some commands (such as php artisan migrate or php artisan db:seed ) I get an error message:
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How to stop app that node.js express 'npm start'
...ou build node.js app with express v4.x then start your app by npm start . My question is how to stop the app? Is there npm stop ?
...