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String concatenation: concat() vs “+” operator
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No, not quite.
Firstly, there's a slight difference in semantics. If a is null, then a.concat(b) throws a NullPointerException but a+=b will treat the original value of a as if it were null. Furthermore, the concat() method only accep...
How do I bind a WPF DataGrid to a variable number of columns?
...d.Columns.Clear();
foreach (DataGridColumn column in ne.NewItems)
{
dataGrid.Columns.Add(column);
}
}
else if (ne.Action == NotifyCollectionChangedAction.Add)
{
foreach (DataGridCo...
Checking if jquery is loaded using Javascript
...if my Jquery Library is loaded onto my HTML page. I am checking to see if it works, but something is not right. Here is what I have:
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A html space is showing as %2520 instead of %20
Passing a filename to the firefox browser causes it to replace spaces with %2520 instead of %20 .
5 Answers
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Checking if a folder exists using a .bat file [closed]
...s and if so, for a message to be displayed and then the batch file to be exited.
2 Answers
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Using port number in Windows host file
...cannot put port numbers in there, and there is no way to do what you want with generic OS-level configuration - the browser is what selects the port to choose.
So use bookmarks or something like that.
(Some firewall/routing software might allow outbound port redirection, but that doesn't really sou...
How to fix Error: listen EADDRINUSE while using nodejs?
If I run a server with the port 80, and I try to use xmlHTTPrequest i get this error: Error: listen EADDRINUSE
39 Answer...
How do I tell Maven to use the latest version of a dependency?
...can use as an alternative to version ranges. You should use these options with care as you are no longer in control of the plugins/dependencies you are using.
When you depend on a plugin or a dependency, you can use the a version value of LATEST or RELEASE. LATEST refers to the latest released o...
Can you test google analytics on a localhost address?
...localhost. You can verify this by opening the developer tools in your favorite browser and watching the network requests during page load. If it is working you will see a request for _utm.gif in the network requests list.
Updated 2013 for Universal Analytics - analytics.js
Google released a new vers...
How to use the C socket API in C++ on z/OS
...eir format, as well as knowing where to look for an answer. You'll find quite often that a feature that you want to use is guarded by a "feature test macro"
You should ask your friendly system programmer to install the XL C/C++ Run-Time Library Reference: Man Pages
on your system. Then you can d...