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Using ping in c#
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Don't know how many people have used this answer by copy and paste :/ Do at least a using (var pinger = new Ping()) { .. } and are early returns so evil?
– Peter Schneider
Jan 31 '19 at 17:56
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What's default HTML/CSS link color?
...on of IE.
If you are looking for a standardized color scheme that is used by all browsers rather than suggested by HTML5, then there isn't one. Neither is there a way to revert to a browser's default value for a particular property on a particular element using pure CSS. You will have to either use...
Get event listeners attached to node using addEventListener
...t){
if(_elements_.indexOf(element)==-1){
// NB : split by useCapture to make listener easier to find when removing
var elt_listeners=[{/*useCapture=false*/},{/*useCapture=true*/}];
_elements_.push(element);
_listeners_.push(elt_listeners);
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Git: which is the default configured remote for branch?
...ng and pulling using git-branch’s track option. You’d normally do this by specifying the --track option when creating your local master branch, but as it already exists we’ll just update the config manually like so:
Edit your .git/config
[branch "master"]
remote = origin
merge = refs/hea...
Key existence check in HashMap
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You won't gain anything by checking that the key exists. This is the code of HashMap:
@Override
public boolean containsKey(Object key) {
Entry<K, V> m = getEntry(key);
return m != null;
}
@Override
public V get(Object key) {
Entr...
Ruby, !! operator (a/k/a the double-bang) [duplicate]
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In most programming languages, including Ruby, ! will return the opposite of the boolean value of the operand. So when you chain two exclamation marks together, it converts the value to a boolean.
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MySQLDump one INSERT statement for each data row
...eds up inserts when the file is reloaded.
--opt
This option, enabled by default, is shorthand for the combination of --add-drop-table --add-locks --create-options --disable-keys --extended-insert --lock-tables --quick --set-charset. It gives a fast dump operation and produces a dump file that ...
How to ignore files/directories in TFS for avoiding them to go to central source repository?
...Further Customization
While not mine, I have found this .tfignore template by sirkirby to be handy. The example in my answer covers the Nuget packages folder but this template includes some other things as well as provides additional examples that can be useful if you wish to customize this further....
What is the difference between and ? [duplicate]
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In case somebody else is confused by this answer: <jsp:include is dynamic (JspRuntimeLibrary), <%@include is static (out.write).
– eis
Oct 18 '13 at 6:56
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Using DISTINCT and COUNT together in a MySQL Query
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Select count(*), productid
from products
where keyword = '$keyword'
group by productid
that will give you a list like
count(*) productid
----------------------
5 12345
3 93884
9 93493
This allows you to see how many of each distinct productid ID...