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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...
}
Exit from root:
# exit
Now restart docker:
$ sudo service docker restart
VERIFICATION:
Now check that adding the /etc/docker/daemon.json file allows you to resolve 'google.com' into an IP address:
$ docker run --rm busybox...
C++ unordered_map using a custom class type as the key
...p; third == other.third);
}
};
Here is a simple hash function (adapted from the one used in the cppreference example for user-defined hash functions):
namespace std {
template <>
struct hash<Key>
{
std::size_t operator()(const Key& k) const
{
using std::size...
Gmail's new image caching is breaking image links in newsletter
...t the gmail server GoogleImageProxy will try to fetch and store the images from your site to its own proxy server. while fetching the images, GoogleImageProxy found some 404 statuses against your missing images and 403 against some protected images. GoogleImagesProxy has stored these statuses into i...
How can I find the method that called the current method?
...(new System.Diagnostics.StackTrace()).GetFrame(1).GetMethod().Name
It is from Get Calling Method using Reflection [C#].
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How can I get zoom functionality for images?
... This is great stuff, been looking for this for ages. Do use the code from github as it is more recent and just works better
– Alex
Jul 16 '12 at 18:20
2
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css3 transition animation on load?
... navigation menu sliding into place using CSS3 only:
@keyframes slideInFromLeft {
0% {
transform: translateX(-100%);
}
100% {
transform: translateX(0);
}
}
header {
/* This section calls the slideInFromLeft animation we defined above */
animation: 1s ease-out 0s 1 slideInF...
What does enumerable mean?
...ondition is in place because objects have many more properties, especially from inheritance:
console.log(Object.getOwnPropertyNames(Object.prototype));
// ["constructor", "toString", "toLocaleString", "valueOf", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable", /* etc. */]
Each of these ...
How to play audio?
...
Notice that from april 2018 on Chrome will not play audio files unless the user has at least clicked once in the document. See here.
– Nils Lindemann
Aug 27 '18 at 21:46
...
How do I type using my keyboard on the iphone simulator?
...
Really Helpful, I too was struggling from couple of days.
– ChenSmile
Oct 29 '14 at 9:42
...
Allowed characters in filename [closed]
...at only because I was bitten by that once when I shortened an include file from const.h to con.h and spent half an hour figuring out why the compiler hung.
Turns out DOS ignored extensions for devices so that con.h was exactly the same as con, the input console (meaning, of course, the compiler was...