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Difference between abstraction and encapsulation?
...s way of saying “I don't care about the type of data” (this is also called type erasure). The important point is that the implementation of qsort always stays the same, regardless of data type. The only thing that has to change is the compare function, which differs from data type to data type. ...
What exactly is the meaning of an API? [closed]
...es are used.
When and where is it used?
Depends upon realm and API, naturally. Consider these:
The x86 (IA-32) Instruction Set (very useful ;-)
A BIOS interrupt call
OpenGL which is often exposed as a C library
Core Windows system calls: WinAPI
The Classes and Methods in Ruby's core library
The ...
Disable validation of HTML5 form elements
...hrome, and if you catch the "invalid" event and return false that seems to allow form submission.
I am using jquery, with this HTML.
// suppress "invalid" events on URL inputs
$('input[type="url"]').bind('invalid', function() {
alert('invalid');
return false;
});
document.forms[0].o...
JOIN queries vs multiple queries
...ase. It depends on a lot of things. Jeff Atwood (founder of this site) actually wrote about this. For the most part, though, if you have the right indexes and you properly do your JOINs it is usually going to be faster to do 1 trip than several.
...
Unit Testing bash scripts
...f the test harness for Perl but now has implementations in C, C++, Python, PHP, Perl, Java, JavaScript, and others.
bats-core
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HTTP Content-Type Header and JSON
...n't care what it is. The browser just returns you the data from the AJAX call. If you want to parse it as JSON, you need to do that on your own.
The header is there so your app can detect what data was returned and how it should handle it. You need to look at the header, and if it's application/...
How to convert NSDate into unix timestamp iphone sdk?
...t? Can I use it in my calculations later? I have one UNIX timestamp from a PHP database online and then this one. I want to compare the two in order to make a decision to download the latest data about an object.
– JeroenEijkhof
May 29 '11 at 23:22
...
How to do a PUT request with curl?
...
"man curl" on -X: "Normally you don't need this option. All sorts of GET, HEAD, POST and PUT requests are rather invoked by using dedicated command line options." But I couldn't find another way.
– Martin C. Martin
...
How to have jQuery restrict file types on upload?
...ad field to only jpg/jpeg, png, and gif. I am doing backend checking with PHP already. I am running my submit button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert.
...
(13: Permission denied) while connecting to upstream:[nginx]
...sue:
sudo cat /var/log/audit/audit.log | grep nginx | grep denied | audit2allow -M mynginx
sudo semodule -i mynginx.pp
References:
http://blog.frag-gustav.de/2013/07/21/nginx-selinux-me-mad/
https://wiki.gentoo.org/wiki/SELinux/Tutorials/Where_to_find_SELinux_permission_denial_details
http://w...