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How to get an absolute file path in Python
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Very helpful. Using os.path.abspath() gave me an error: AttributeError: 'NoneType' object has no attribute 'startswith', using Path().resolve() does not with the same relative filepath. (Linux and Python3.4)
– NuclearPeon
Aug 31 '15 at...
How to write a cron that will run a script every day at midnight?
...native.
# Run once after reboot.
@reboot /usr/local/sbin/run_only_once_after_reboot.sh
You can also use this trick to run your cron job multiple times per minute.
# Run every minute at 0, 20, and 40 second intervals
* * * * * sleep 00; /usr/local/sbin/run_3times_per_min...
How do I test a file upload in rails?
... I get a "uninitialized constant ActionController::TestUploadedFile" error when I run a test with this code. Anything else I would need to require in the file?
– Vini.g.fer
May 21 '15 at 18:21
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How to extract img src, title and alt from html using php? [duplicate]
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Call this function beforehand to handle errors gracefully: libxml_use_internal_errors( true );. You can also loop over those XML errors with libxml_get_errors()
– Matt
Jan 13 '12 at 17:10
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In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
...All of this is very well explained in the ARC transition guide.
In your NSError example, the declaration means __strong, implicitly:
NSError * e = nil;
Will be transformed to:
NSError * __strong error = nil;
When you call your save method:
- ( BOOL )save: ( NSError * __autoreleasing * );
T...
How to disable an input type=text?
... Poz You are calling native js setter on jquery object it will result with error. $('#foo')[0].disabled = true or $('#foo').get(0).disabled = true will do the work
– Arek Kostrzeba
Oct 12 '17 at 14:03
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This Handler class should be static or leaks might occur: IncomingHandler
... Note: after making the IncomingHandler static, I was getting the error "The constructor MyActivity.IncomingHandler() is undefined." on the line "final Messenger inMessenger = new Messenger(new IncomingHandler());". The solution is to change that line to "final Messenger inMessenger = new M...
What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
...x comma joins with the other join types when there is a join condition, an error of the form Unknown column 'col_name' in 'on clause' may occur"
– Captain Payalytic
Oct 17 '18 at 11:27
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What does the PHP error message “Notice: Use of undefined constant” mean?
PHP is writing this error in the logs: "Notice: Use of undefined constant".
9 Answers
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PHP - Extracting a property from an array of objects
...ray_map with create_function in it you will always get an Out of memory... error sometime. So don't use create_function and use array_map(function($o) { return $o->id; }, $objects);
– algorhythm
Sep 12 '14 at 11:47
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