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When to use Storyboard and when to use XIBs
... even reuse a previously loaded view controller by just updating it's view contents instead of fully reload the whole thing.
At the end you can really do the same things as in code, but I think you have a better separation of concerns with storyboards, but I agree that in many things they lack of fe...
Design Patterns: Abstract Factory vs Factory Method
... more than one method of types it produces. (This is complicated refer to nm>ex m>t diagram for better real-life m>ex m>ample).
m>Ex m>ample From The .NET Framework
DbFactoriesProvider is a Simple Factory as it has no sub-types. The DbFactoryProvider is an abstract factory as it can create various related data...
Can you change what a symlink points to after it is created?
...> .bashrc
$ ln -s .profile test
ln: creating symbolic link `test': File m>ex m>ists
$ ln -s -f .profile test
$ ls -al test
lrwxrwxrwx 1 pascal pascal 8 2009-09-23 17:12 test -> .profile
EDIT: As the OP pointed out in a comment, using the --force option will make ln perform a system call to unlink...
How to calculate md5 hash of a file using javascript
...w browsers?
With a browser that supports the FileAPI, you *can * read the contents of a file - the user has to have selected it, either with an <input> element or drag-and-drop. As of Jan 2013, here's how the major browsers stack up:
FF 3.6 supports FileReader, FF4 supports even more file b...
How can I check if a string represents an int, without using try/m>ex m>cept?
...e your input_num can be less than 0, use re.sub(regm>ex m>_search,regm>ex m>_replace,contents) before applying str.isdigit(). For m>ex m>ample:
import re
input_num = "-23"
input_num = re.sub("^-", "", input_num) ## "^" indicates to remove the first "-" only
str.isdigit(input_num) ## True
...
Checking if a double (or float) is NaN in C++
...ntation for your compiler, of course...
– dmckee --- m>ex m>-moderator kitten
Feb 20 '09 at 19:21
39
-...
size_t vs. uintptr_t
...e C standard guarantees that size_t is a type that can hold any array indm>ex m>. This means that, logically, size_t should be able to hold any pointer type. I've read on some sites that I found on the Googles that this is legal and/or should always work:
...
Why use the params keyword?
...
The sum with a delegate, though, does increase the complm>ex m>ity of the compiled code, which could potentially be less performant. Not really relevant in this particular situation, as it would not result in any closures, but it's worth knowing what the compiler's actually doing to m...
What is the !! (not not) operator in JavaScript?
...
the point is for variables that you might not know its contents; if it could
Convert JS Object to form data
...com/upload.m>php m>',
data : form_data,
processData : false,
contentType : false,
type: 'POST'
}).done(function(data){
// do stuff
});
There are more m>ex m>amples in the documentation on MDN
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