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back button callback in navigationController in iOS
...IBarButtonItem alloc] initWithTitle:@”back”
style:UIBarButtonItemStyleBordered
target:self
action:@selector(handleBack:)];
self.navigationItem.leftBarButtonItem = backButton;
[backButton release];
}
- (void) handleBack:(id)sender
{
// pop to root view controller
[self.navigationController popT...
Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
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Hint: in order to identify what's causing the issue, e.g. add a random print statement in the settings file and move it around to see where it breaks.
– Felix Böhme
Sep 30 '15 at 15:52
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What's the difference between a Python module and a Python package?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Should I use a class or dictionary?
... SO are sorted by votes, and answers with the same vote count are randomly ordered. So please clarify whom you mean by "the last poster".
– Mike DeSimone
Oct 28 '10 at 17:34
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How to run a program without an operating system?
... select to boot from the USB.
It is often possible to configure the search order in those menus.
For example, on my T430 I see the following.
After turning on, this is when I have to press Enter to enter the boot menu:
Then, here I have to press F12 to select the USB as the boot device:
From th...
How disable Copy, Cut, Select, Select All in UITextView
... method using a category. This is undefined behavior. You must subclass in order to safely override a method.
– Rob Napier
Apr 22 '13 at 18:42
2
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Restart node upon changing a file
For someone who is coming from PHP background the process of killing node and starting it again after every code change, seems very tedious. Is there any flag when starting a script with node to automatically restart node when code change is saved?
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How to override the copy/deepcopy operations for a Python object?
...The copy module does
not use the copy_reg registration
module.
In order for a class to define its own
copy implementation, it can define
special methods __copy__() and
__deepcopy__(). The former is called to implement the shallow copy
operation; no additional arguments are
passed....
IE10 renders in IE7 mode. How to force Standards mode?
...ore about these issues at the MSDN article Best Practice: Get your HEAD in order.
Adding the X-UA-Compatible header
If you are using .NET and IIS you can add this to the web.config, you could also do this programmatically:
<system.webServer>
<httpProtocol>
<customHeaders>...
What's the difference between Task.Start/Wait and Async/Await?
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what is the difference between doing Task.Wait and await task?
You order your lunch from the waiter at the restaurant. A moment after giving your order, a friend walks in and sits down next to you and starts a conversation. Now you have two choices. You can ignore your friend until the task ...