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Joining three tables using MySQL
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Peter Mortensen
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answered Sep 14 '10 at 14:11
raisynraisyn
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What is “missing” in the Visual Studio 2008 Express Editions?
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The major areas where Visual Studio Express lacks features compared to Visual Studio Professional:
No add-ins/macros
Some Win32 tools missing
No Team Explorer support
Limited refactoring support
Debugging is much more limited (particularly problematic for server develop...
How to override equals method in Java
... name and age . Now I want to override equals method so that I can check between 2 People objects.
9 Answers
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Crop MP3 to first 30 seconds
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I also recommend ffmpeg, but the command line suggested by John Boker has an unintended side effect: it re-encodes the file to the default bitrate (which is 64 kb/s in the version I have here at least). This might give your customers a false impression of the quality of your sound files, an...
round() doesn't seem to be rounding properly
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I can't help the way it's stored, but at least formatting works correctly:
'%.1f' % round(n, 1) # Gives you '5.6'
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Multiplication on command line terminal
...tic Expansion $(( )) to do some simple maths
$ echo "$((5 * 5))"
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Check the Shell Arithmetic section in the Bash Reference Manual for a complete list of operators.
For sake of completeness, as other pointed out, if you need arbitrary precision, bc or dc would be better.
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How to remove k__BackingField from json when Deserialize
I am getting the k_BackingField in my returned json after serializing a xml file to a .net c# object.
13 Answers
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How can I get dictionary key as variable directly in Python (not by searching from value)?
...s on this are not turning up anything other than how to get a dictionary's key based on its value which I would prefer not to use as I simply want the text/name of the key and am worried that searching by value may end up returning 2 or more keys if the dictionary has a lot of entries... what I am t...
How do I remove objects from a JavaScript associative array?
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Objects in JavaScript can be thought of as associative arrays, mapping keys (properties) to values.
To remove a property from an object in JavaScript you use the delete operator:
const o = { lastName: 'foo' }
o.hasOwnProperty('lastName') // true
delete o['lastName']
o.hasOwnProperty('lastName'...
Unique Constraint in Entity Framework Code First
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As far as I can tell, there's no way to do this with Entity Framework at the moment. However, this isn't just a problem with unique constraints... you may want to create indexes, check constraints, and possibly triggers and other constructs too. Here's a simple pattern you can use with your...