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How to select rows with no matching entry in another table?
I'm doing some maintenance work on a database application and I've discovered that, joy of joys, even though values from one table are being used in the style of foreign keys, there's no foreign key constraints on the tables.
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Find an element in DOM based on an attribute value
Can you please tell me if there is any DOM API which search for an element with given attribute name and attribute value:
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Forking vs. Branching in GitHub
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Aidan FeldmanAidan Feldman
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Should I use 'has_key()' or 'in' on Python dicts?
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in is definitely more pythonic.
In fact has_key() was removed in Python 3.x.
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AWS S3: how do I see how much disk space is using
I have AWS account. I'm using S3 to store backups from different servers. The question is there any information in the AWS console about how much disk space is in use in my S3 cloud?
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Javascript - Track mouse position
I am hoping to track the position of the mouse cursor, periodically every t mseconds. So essentially, when a page loads - this tracker should start and for (say) every 100 ms, I should get the new value of posX and posY and print it out in the form.
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Get the client's IP address in socket.io
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Balthazar
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answered Jul 18 '11 at 21:00
TojiToji
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What is this weird colon-member (“ : ”) syntax in the constructor?
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edited Aug 4 '19 at 22:32
answered Nov 10 '09 at 23:35
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How to make a class JSON serializable
...f)
'{"fname": "/foo/bar"}'
In that case you can merely call json.dumps(f.__dict__).
If you want more customized output then you will have to subclass JSONEncoder and implement your own custom serialization.
For a trivial example, see below.
>>> from json import JSONEncoder
>>&g...
PHP function to get the subdomain of a URL
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You can do this by first getting the domain name (e.g. sub.example.com => example.co.uk) and...