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Using margin:auto to vertically-align a div
...good answer when you may also be confused with the fit-content problem. By setting flex on the container, the content div does not need any properties to set.
– Eric
Feb 9 '18 at 10:48
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Data binding to SelectedItem in a WPF Treeview
... {
get { return (object)GetValue(SelectedItemProperty); }
set { SetValue(SelectedItemProperty, value); }
}
public static readonly DependencyProperty SelectedItemProperty =
DependencyProperty.Register("SelectedItem", typeof(object), typeof(BindableSelectedItemBehavio...
MAC addresses in JavaScript
...al) gets higher privileges than normal JS (but it is fairly complicated to set up)
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Difference between subprocess.Popen and os.system
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subprocess.Popen() is strict super-set of os.system().
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Renew Push certificate and keep current App Store App working
... for
Click "Renew"
Your service:
Log in and find the "push certificate setup" area (for google this is Mobile Apple Push Cert
Download your services signing request
Apple:
Upload your signing request
Download their response
Your service:
Upload the signed response
At this point, everyt...
How many characters can UTF-8 encode?
...e as ascii). But that only requires 7 bits. If the highest ("sign") bit is set, this indicates the start of a multi-byte sequence; the number of consecutive high bits set indicates the number of bytes, then a 0, and the remaining bits contribute to the value. For the other bytes, the highest two bi...
Remote branch is not showing up in “git branch -r”
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If you clone with the --depth parameter, it sets .git/config not to fetch all branches, but only master.
You can simply omit the parameter or update the configuration file from
fetch = +refs/heads/master:refs/remotes/origin/master
to
fetch = +refs/heads/*:refs/rem...
Eclipse Android and gitignore
...gitignore file you link to on GitHub) to exclude .project, .classpath and .settings. These are part of the project setup which you would like to capture in git.
– mgd
Dec 21 '12 at 7:58
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Why do access tokens expire?
...to obtain long term access.
Let's imagine you are implementing oauth2 and set a long timeout on the access token:
In 1) There's not much difference here between a short and long access token since it's hidden in the app server. In 2) someone could get the access_token in the browser and then use i...
Xcode build failure “Undefined symbols for architecture x86_64”
... the answer below is not correct anymore!
Old answer
The new Xcode 5.1 sets the architecture armv7,armv7s,and arm64 as default.
And sometimes the error "build failure “Undefined symbols for architecture x86_64”" may be caused by this. Because, some libs (not Apple's) were compiled for x32 o...