sudo apt-get update (freshens the cache/database of packages)
sudo apt-cache show tmux (*optional, shows you available versions, 1.7 & 1.8 should be listed)
sudo apt-get install tmux
tmux -V
]]>- (NSInteger) subtract:(NSInteger)paramValue from:(NSInteger)paramFrom {
return paramFrom - paramValue;
}
pure C function that provides the same functionality to get one step closer to learning the syntax of block objects:
NSInteger subtract(NSInteger paramValue, NSInteger paramFrom){
return paramFrom - paramValue;
}
You can see that the C function is quite different in syntax from its Objective-C counterpart. Now let’s have a look at how we could code the same function as a block object:
NSInteger (^subtract)(NSInteger, NSInteger) = ^(NSInteger paramValue,
NSInteger paramFrom) {
return paramFrom - paramValue;
};
Suppose we have a function in C that takes a parameter of type NSUInteger (an unsigned integer) and returns it as a string of type NSString. Here is how we implement this in C:
NSString* intToString (NSUInteger paramInteger){
return [NSString stringWithFormat:@"%lu",
(unsigned long)paramInteger];
}
The block object equivalent of this C function is:
NSString* (^intToString)(NSUInteger) = ^(NSUInteger paramInteger){
NSString *result = [NSString stringWithFormat:@"%lu",
(unsigned long)paramInteger];
return result;
};
The simplest form of an independent block object would be a block object that returns void and does not take in any parameters:
void (^simpleBlock)(void) = ^{
/* Implement the block object here */
};
Block objects can be invoked in the exact same way as C functions. If they have any parameters, you pass those as you would for a C function, and any return value can be retrieved exactly as you would retrieve a C function’s return value. Here is an example:”
NSString* (^intToString)(NSUInteger) = ^(NSUInteger paramInteger){
NSString *result = [NSString stringWithFormat:@"%lu",
(unsigned long)paramInteger];
return result;
};
- (void) callIntToString{
NSString *string = intToString(10);
NSLog(@"string = %@", string);
}
“The callIntToString Objective-C method is calling the intToString block object by passing the value 10 as the only parameter to this block object and placing the return value of this block object in the string local variable.
]]> User A logs in with facebook on app X. App X grabs all of his fb
friend list and save it to Parse. Then, his friend user B logs
in with facebook using app X. This gives us possibility to send
a notification to the user A saying, your friend just joined the
app.
Birthdays:
Login with facebook, your friends birthday and get automatic
notification to your phone.
Another useful plugin is
YouCompleteMe and
ultisnips. Unfortunately it’s not
seamless but it definitely gets the job done. It allows you to choose the
dropdown snippets and allow you to choose those using
Tern for vim is another useful
pluging for doing javascript in vim. For me beside the killer feature is to
allow me to jump to defition of functions. Follow the installation instructions
and then whenever cursor is on a variable or a property TernDef takes you there.
I have just started using it so, at this point scratching the surface. Another
handy vim command <c o > and <c i> allows to go jumpback to old cursor
positions if one wants to go back.
These are all useful additions to vim workspace.
]]>http://www.howtogeek.com/162120/how-to-install-ubuntu-linux-on-your-chromebook-with-crouton/
]]>Here are a few webpages to grasp it better:
http://yahooeng.tumblr.com/post/62383009835/javascript-modules-amd-and-the-road-ahead
http://blog.startifact.com/posts/overwhelmed-by-javascript-dependencies.html
http://blog.testdouble.com/posts/2013-06-16-unrequired-love.html
http://dontkry.com/posts/code/browserify-and-the-universal-module-definition.html
Generally there are two camps, RequireJS and CommonJS. CommonJS is similar to how npm but AMD people (RequireJS) think it’s a javascript hack and it doesn’t conform to the standards. From the other side, the critization is, RequireJS adds a lot of headache when project gets bigger.
It looks like with ECMAScript 6, Javascript folks are going to try to come up with a cleaner and more important standard way of handling all these tasks.
]]>Here’s one for Turkey: http://www.appannie.com/top/iphone/turkey/
]]>In order to solve this problem it will be good to have a service where it’s easy to dump links, text, video, in order to pick those up later.
]]>For a very simple start, I need a few things to make this work: 1. Figure out a way to route the screen shot of the chart from desktop using mac os x screenshot application to the chartist application. 2. Get a few inputs from the user including the derivative symbol, entry price, exit price. 3. Try to grab the feed from the yahoo finance API.
]]>