When we want to bind a variable within an anonymous function unchanging value outside of the function, you can implement the following javascript code:
var funcs = [];
function createfunc(i) {
return function() { console.log("My value: " + i); };
}
for (var i = 0; i < 3; i++) {
funcs[i] = createfunc(i);
}
for (var j = 0; j < 3; j++) {
funcs[j](); // and now let's run each one to see
}
Since...
Javascript: How to return response from asynchronous ajax call
The next piece of code tries to return the response fron an ajax asynchronous call but with this we can only get undefined values:
function foo() {
var result;
$.ajax({
url: '...',
success: function(response) {
result = response;
// return response; // <- tried that one as well
}
});
return result;
}
var result = foo(); // always ends up being `undefined`.
The...
IOS: Difference between atomic and non-atomic attributes
What do atomic and nonatomic mean in property declarations?
@property(nonatomic, retain) UITextField *userName;
@property(atomic, retain) UITextField *userName;
@property(retain) UITextField *userName;
Let's talk about the operational difference:
What do atomic and nonatomic mean in property declarations? atomic was added as a keyword in recent versions of llvm/clang).
Assuming that you are @synthesizing the method implementations,...
iOS How to send SMS with iPhone
Restrictions
If you could send an SMS within a program on the iPhone, you'll be able to write games that spam people in the background. I'm sure you really want to have spams from your friends, "Try out this new game! It roxxers my boxxers, and yours will be too! roxxersboxxers.com!!!! If you sign up now you'll get 3,200 RB points!!"
Apple has restrictions for automated (or even partially automated) SMS and dialing operations....
How to embed custom font in iOS iphone app
iOS 3.2 and later support this. Straight from the What's New in iPhone OS 3.2 doc:
Custom iOs Font SupportApplications that want to use custom fonts can now include those fonts in their application bundle and register those fonts with the system by including the UIAppFonts key in their Info.plist file. The value of this key is an array of strings identifying the font files in the application’s bundle. When the system sees the...
Making filetypes handling association with ios iphone app
File type handling is new with iPhone OS 3.2, and is different than the already-existing custom URL schemes. You can register your application to handle particular document types, and any application that uses a document controller can hand off processing of these documents to your own application.For example, Molecules handles the .pdb and .pdb.gz file types, if received via email or in another supported application.To register...
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