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Why does InetAddress.isReachable return false, when I can ping the IP address?
... 443 - webserver, 25 - mailserver etc.
try {
try (Socket soc = new Socket()) {
soc.connect(new InetSocketAddress(addr, openPort), timeOutMillis);
}
return true;
} catch (IOException ex) {
return false;
}
}
...
Distinct() with lambda?
...nc<TSource, TKey> keySelector)
{
HashSet<TKey> knownKeys = new HashSet<TKey>();
foreach (TSource element in source)
{
if (knownKeys.Add(keySelector(element)))
{
yield return element;
}
}
}
...
Format string, integer with leading zeros
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f2985170%2fformat-string-integer-with-leading-zeros%23new-answer', 'question_page');
}
);
...
What's Go's equivalent of argv[0]?
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
Docker - how can I copy a file from an image to a host?
..., create a temporary container, copy the file from it and then delete it:
id=$(docker create image-name)
docker cp $id:path - > local-tar-file
docker rm -v $id
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improve this answer
...
How to properly exit a C# application?
... code that could be used by a script to take appropriate action. (This is new code and a WinForms application, so it is unlikely to matter in this case, but good to know for anyone writing command-line tools.)
– YipYip
Jun 20 '18 at 19:00
...
Microsoft.WebApplication.targets was not found, on the build server. What's your solution?
...bApplication.targets" />
The first line is the actual import from the new location that is relative to the solution directory. The second one is a turned-off version (Condition="false") of the original line that allows for Visual Studio to still consider your project to be a valid Web Applicati...
How do I check/uncheck all checkboxes with a button using jQuery?
...rop('checked', false) should be used instead, as explained in @richard-garside answer.
– David Torres
Aug 19 '16 at 10:23
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How to properly override clone method?
...ethods, a subclass will generally only have to override clone() if it adds new fields whose contents would need to be cloned. If any superclass uses new rather than super.clone(), then all subclasses must override clone() whether or not they add any new fields.
– supercat
...
Override browser form-filling and input highlighting with HTML/CSS
...ut:-webkit-autofill {
background-color: #FAFFBD !important;
}
1) as #id-styles are even more important than .class styles, the following may work:
#inputId:-webkit-autofill {
background-color: white !important;
}
2) if that won't work, you can try to set the style via javascript program...