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Create subdomains on the fly with .htaccess (PHP)
...ch as *.example.org. A wildcard entry looks like this:
*.example.org. 3600 A 127.0.0.1
2. Include the wildcard in vhost
Next up in the Apache configuration you need to set up a vhost container that specifies the wildcard in the ServerAlias DOCs directive. An example vhost container:
<Vir...
Howto: Clean a mysql InnoDB storage engine?
...lib/mysql_grants
Login to mysql and run SET GLOBAL innodb_fast_shutdown = 0; (This will completely flush all remaining transactional changes from ib_logfile0 and ib_logfile1)
Shutdown MySQL
Add the following lines to /etc/my.cnf (or my.ini on Windows)
[mysqld]
innodb_file_per_table
innodb_flush_me...
Detecting endianness programmatically in a C++ program
...n(void)
{
union {
uint32_t i;
char c[4];
} bint = {0x01020304};
return bint.c[0] == 1;
}
The principle is equivalent to the type case as suggested by others, but this is clearer - and according to C99, is guaranteed to be correct. gcc prefers this compared to the dire...
What is the difference between visibility:hidden and display:none?
...
1509
display:none means that the tag in question will not appear on the page at all (although you ca...
Can you use a trailing comma in a JSON object?
...ue, so you end up with code that looks like this:
s.append("[");
for (i = 0; i < 5; ++i) {
if (i) s.append(","); // add the comma only if this isn't the first entry
s.appendF("\"%d\"", i);
}
s.append("]");
That extra one line of code in your for loop is hardly expensive...
Another alterna...
How to make a div 100% height of the browser window
...e use of vh: 1vh is equal to 1% of the viewport's height. That is to say, 100vh is equal to the height of the browser window, regardless of where the element is situated in the DOM tree:
HTML
<div></div>
CSS
div {
height: 100vh;
}
This is literally all that's needed. Here is a...
Why aren't pointers initialized with NULL by default?
...
Deduplicator
40.1k66 gold badges5858 silver badges101101 bronze badges
answered Dec 15 '09 at 22:44
Martin YorkMart...
Can I change multiplier property for NSLayoutConstraint?
...ES;
[self.view layoutIfNeeded]; // or using [UIView animate ...]
Swift 5.0 version
var standardConstraint: NSLayoutConstraint!
var zoomedConstraint: NSLayoutConstraint!
// ...
// switch between constraints
standardConstraint.isActive = false // this line should always be the first line. because...
Test whether a glob has any matches in bash
...it'll get pre-expanded into matches.
Exit status is:
1 for no-match,
0 for 'one or more matches'
stdout is a list of files matching the glob.
I think this is the best option in terms of conciseness and minimizing potential side effects.
UPDATE: Example usage requested.
if compgen -G "/tmp/...
How to determine an interface{} value's “real” type?
...
101
Your example does work. Here's a simplified version.
package main
import "fmt"
func weird(i ...