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How can I find out if I have Xcode commandline tools installed?
...ow you get it from the store, and with this new mechanism it can't install extra things outside of the Xcode.app, so you have to manually do it yourself, by:
xcode-select --install
On Xcode 4.x you can check to see if they are installed from within the Xcode
UI:
On Xcode 5.x it is now here:
...
How to print the full traceback without halting the program?
..._error
RuntimeError: something bad happened!
Or perhaps you just want the string, in which case, you'll want the traceback.format_exc function instead:
try:
do_something_that_might_error()
except Exception as error:
logger.debug(traceback.format_exc())
Which logs:
DEBUG:__main__:Traceback ...
What is the difference between D3 and jQuery?
...y update the page with the new content. It's real nice to not have all the extra overhead like jquery, backbone + its plugins, angular, etc. You only need to know d3. Now d3 doesn't have a routing system baked into it. But you can always find one.
Jquery on the other hand, it's sole purpose is to w...
Difference between `data` and `newtype` in Haskell
...al constructor at runtime with newtype, this property doesn't hold.
That extra pointer in the Book to (,) constructor allows us to put a bottom value in.
As a result, newtype and data have slightly different strictness properties, as explained in the Haskell wiki article.
Unboxing
It doesn't ma...
What is the difference between a route and resource in New Router API?
...
That is much clearer. Thanks for the extra example, mavilein.
– Patrick M
Mar 4 '14 at 19:44
...
Vertically align text to top within a UILabel
...abelFrame];
[myLabel setBackgroundColor:[UIColor orangeColor]];
NSString *labelText = @"I am the very model of a modern Major-General, I've information vegetable, animal, and mineral";
[myLabel setText:labelText];
// Tell the label to use an unlimited number of lines
[myLabel s...
How do I pipe a subprocess call to a text file?
... bash or dash), it's more secure that way as you're not open to all of the extra functionality provided by the shell (a whole programming language unto itself, with it's own exploits if passing in user provided data). Also take a look at shlex.quote if you are passing any possibly dirty data to a su...
What is the difference between sites-enabled and sites-available directory?
...led default.save, inside the sites-enabled directory. So, there will be an extra file inside the sites-enabled directory. That will prevent Apache or NGINX from starting. If your site was working, it will not be anymore. You will have a hard time until you find out, in the logs, something related to...
How can I get Visual Studio 2008 Windows Forms designer to render a Form that implements an abstract
...ct method is to return the title of the page, then I will make it return a string "Please change the title".
– Darius
Sep 12 '19 at 7:56
...
initializer_list and move semantics
...y made that so in order to allow initializer lists to contain for instance string constants, from which it would be inappropriate to move.
However, if you are in a situation where you know that the initializer list contains rvalue expressions (or you want to force the user to write those) then ther...