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How to write a:hover in inline CSS?
I have a case where I must write inline CSS code, and I want to apply a hover style on an anchor.
23 Answers
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How do I put variables inside javascript strings?
...e('hello %s, how are you doing', my_name);
This is only a simple example and does not take into account different kinds of data types (like %i, etc) or escaping of %s. But I hope it gives you some idea. I'm pretty sure there are also libraries out there which provide a function like this.
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FirstOrDefault: Default value other than null
As I understand it, in Linq the method FirstOrDefault() can return a Default value of something other than null. What I haven't worked out is what kind of things other than null can be returned by this (and similar) method when there are no items in the query result. Is there any particular wa...
What is the simplest SQL Query to find the second largest value?
... produce the correct second largest value while if you used the top 2 desc and min approach, you may get the largest value instead.
– Pankaj Sharma
Apr 1 '13 at 19:22
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Prevent onmouseout when hovering child element of the parent absolute div WITHOUT jQuery
...tion onMouseOut(event) {
//this is the original element the event handler was assigned to
var e = event.toElement || event.relatedTarget;
if (e.parentNode == this || e == this) {
return;
}
alert('MouseOut');
// handle mouse event here!
}
document...
How can I disable the UITableView selection?
When you tap a row in a UITableView , the row is highlighted and selected. Is it possible to disable this so tapping a row does nothing?
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How to do an update + join in PostgreSQL?
... -- joined table
WHERE
a.abiturient_id = b.id AND -- JOIN ON clause
a.documents_taken_at::date < b.certificate_issued_at -- Subquery WHERE
As you can see, original subquery JOIN's ON clause have become one of WHERE conditions, which is ...
PHP script to loop through all of the files in a directory?
...of files, such as the script itself or other "system" files. (Like the . and .. "directories".)
8 Answers
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Add up a column of numbers at the Unix shell
..... | paste -sd+ - | bc
is the shortest one I've found (from the UNIX Command Line blog).
Edit: added the - argument for portability, thanks @Dogbert and @Owen.
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...erver Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
在apache日志中显示：
[root@mail ~]# tail -f /usr/local/httpd/logs/error_log
sh: /usr/sbin/sendmail: No such file or directory
sh: /usr/sbin/sendmail: No such file or dir...