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How to determine a user's IP address in node
...ers['x-forwarded-for']. Also, an x-forwarded-for header will not always be set which may throw an error.
The general format of the field is:
x-forwarded-for: client, proxy1, proxy2, proxy3
where the value is a comma+space separated list of IP addresses, the left-most being the original client, an...
How do I lock the orientation to portrait mode in a iPhone Web Application?
...tate(-90deg)" : "");
}
window.onorientationchange = reorient;
window.setTimeout(reorient, 0);
});
The code expects the entire contents of your page to live inside a div just inside the body element. It rotates that div 90 degrees in landscape mode - back to portrait.
Left as an exercise to ...
Add a common Legend for combined ggplots
...
You may also use ggarrange from ggpubr package and set "common.legend = TRUE":
library(ggpubr)
dsamp <- diamonds[sample(nrow(diamonds), 1000), ]
p1 <- qplot(carat, price, data = dsamp, colour = clarity)
p2 <- qplot(cut, price, data = dsamp, colour = clarity)
p3 <...
How to force GitHub Pages build?
...access token. Basically, you have to log in your GitHub account and go to: Settings > Developer settings > Personal access tokens > Generate new token.
Tick repo scope.
Copy the token.
2. Create the following script:
Create a file called RebuildPage.sh and add the lines:
#!/bin/bash
cu...
cannot load such file — bundler/setup (LoadError)
I'm setting Rails 4 application with Ruby 2.0, but I'm getting "Web application could not be started" and get this trace:
1...
UnicodeDecodeError when redirecting to file
I run this snippet twice, in the Ubuntu terminal (encoding set to utf-8), once with ./test.py and then with ./test.py >out.txt :
...
Add alternating row color to SQL Server Reporting services report
...s
' -- Call from BackGroundColor property of all detail row textboxes
' -- Set Toggle True for first item, False for others.
'*************************************************************************
Function AlternateColor(ByVal OddColor As String, _
ByVal EvenColor As String, ByVal Toggle...
AngularJS : Where to use promises?
...umentation on the $q service. It took me a while to understand it.
Let's set aside AngularJS for a moment and just consider the Facebook API calls. Both the API calls use a callback mechanism to notify the caller when the response from Facebook is available:
facebook.FB.api('/' + item, functio...
What is the _snowman param in Ruby on Rails 3 forms for?
... by IE as a unicode character, we are forcing IE to look at the accept-charset attribute, which then tells it to encode all of the characters as UTF-8, even ones that can be encoded in Latin-1.
Keep in mind that in Ruby 1.8, it is extremely trivial to get Latin-1 data into your UTF-8 database (sinc...
Arguments or parameters? [duplicate]
...merator/denominator;
}
It has two parameters: numerator and denominator, set when it's defined. Once defined, the parameters of a function are fixed and won't change.
Now consider an invocation of that function:
int result = divide(8, 4);
In this case, 8 and 4 are the arguments passed to the ...