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When to use AtomicReference in Java?
...ention of that lock Object. Thats because most locks require an OS system call, and your thread will block and be context switched out of the CPU to make way for other processes.
The other option is to use an AtomicRefrence.
public static AtomicReference<String> shared = new AtomicReference...
What can you use Python generator functions for?
...sible.
Another use for generators (that is really the same) is to replace callbacks with iteration. In some situations you want a function to do a lot of work and occasionally report back to the caller. Traditionally you'd use a callback function for this. You pass this callback to the work-functio...
Access lapply index names inside FUN
...
Here the function uses "global" variable x and extracts the names in each call.
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How to download image using requests
...ou need to iterate over the requests.Response itself: for chunk in r: .... Calling iter_content() without a chunk_size will iterate in 1 byte chunks.
– dtk
Jun 2 '15 at 23:23
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Django REST framework: non-model serializer
...nd need your advice. I am developing a web service. The service has to provide REST interface to other services. The REST interface, which I need to implement, is not working with my models directly (I mean the get, put, post, delete operations). Instead, it provides other services with some calcula...
Is there a way to cache GitHub credentials for pushing commits?
...n Git to avoid having to type your password all the time for HTTP / HTTPS, called credential helpers. (Thanks to dazonic for pointing out this new feature in the comments below.)
With Git 1.7.9 or later, you can just use one of the following credential helpers:
git config --global credential.helpe...
Uploading base64 encoded Image to Amazon S3 via Node.js
Yesterday I did a deep night coding session and created a small node.js/JS (well actually CoffeeScript, but CoffeeScript is just JavaScript so lets say JS) app.
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differentiate null=True, blank=True in django
...anslating to None in Python) if you set null=True. The docs even say to avoid setting null=True because it allows two different kinds of "blanky" values. I just tested this behaviour with Django 1.8/MySQL 5.6
– Edward D'Souza
Aug 3 '16 at 17:14
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Rollback a Git merge
... Sadly, the here link in the @Hilikus comment is no longer valid. The site claims the content got moved to a book ( git-scm.com/book/en/v2 ) but if so, it is non-trivial to locate in there.
– Jesse Chisholm
Jul 26 '19 at 15:23
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How to quickly and conveniently disable all console.log statements in my code?
...how up!');
}
);
How to use the above 'logger'? In your ready event, call logger.disableLogger so that console messages are not logged. Add calls to logger.enableLogger and logger.disableLogger inside the method for which you want to log messages to the console.
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