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Disable Automatic Reference Counting for Some Files
...t messages by any means (including timers and delayed performs, which use @selector) is banned in ARC code. So you can't do non-ARC in an ARC class (because the necessary messages are banned) and you can't do ARC in a non-ARC class (because ARC adds syntax elements that are invalid without ARC).
Th...
Cannot use identity column key generation with ( TABLE_PER_CLASS )
...refer using 'TABLE' id generation strategy as it triggers lots of queries (select, insert, and update) and maintains locks to generate unique values for primary key. So what would be an alternate solution to this If we have a kinda big Inheritance scenario? It will certainly impact the performance a...
Empty Visual Studio Project?
...oject won't do a 'damn' thing either when you go to Project Properties and select Utility under Configuration Type under the General tab.
– Abel
Feb 2 '10 at 16:17
...
Remove Safari/Chrome textinput/textarea glow
... you can interact with. Let accessibility trump aesthetics here.
textarea, select, input, button { outline: none; }
Although, it's been argued that keeping the glow/outline is actually beneficial for accessibility as it can help users see which Element is currently focused.
You can also use the pse...
Submitting a form by pressing enter without a submit button
...
A keypress is also triggered for a selection from autocomplete, i.e. if the user is inputting an email address and he/she selects a previously given one from the browser's autocomplete by hitting enter, then your form will submit. Not what your users will expe...
What port is a given program using? [closed]
...ool.
In Process Explorer: locate the process in question, right-click and select the TCP/IP tab. It will even show you, for each socket, a stack trace representing the code that opened that socket.
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Read Excel File in Python
...ues for a given column
values = df['Arm_id'].values
#get a data frame with selected columns
FORMAT = ['Arm_id', 'DSPName', 'Pincode']
df_selected = df[FORMAT]
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How to get JSON from URL in JavaScript?
...getJSON() function:
$.getJSON('http://query.yahooapis.com/v1/public/yql?q=select%20%2a%20from%20yahoo.finance.quotes%20WHERE%20symbol%3D%27WRC%27&format=json&diagnostics=true&env=store://datatables.org/alltableswithkeys&callback', function(data) {
// JSON result in `data` variab...
How to add a right button to a UINavigationController?
... initWithTitle:@"Show" style:UIBarButtonItemStylePlain target:self action:@selector(refreshPropertyList:)];
self.navigationItem.rightBarButtonItem = anotherButton;
// exclude the following in ARC projects...
[anotherButton release];
}
As to why it isn't working currently, I can't s...
Xcode Project vs. Xcode Workspace - Differences
...nd resources) actually belong to a product. When you build/run, you always select one specific target.
It is likely that you have a few targets that share code and resources. These different targets can be slightly different versions of an app (iPad/iPhone, different brandings,…) or test cases th...