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What exactly does += do in python?
...are indeed several others, including bitwise operators (&=, >>=, etc.) and additional math operators (**=, etc.).
– Michael
Dec 21 '17 at 16:12
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What's the -practical- difference between a Bare and non-Bare repository?
...e focal point for collaborative
development. Other developers clone and fetch from the bare
repository and push updates to it... if you set up a repository into
which developers push changes, it should be bare. In effect, this is
a special case of the more general best practice that a publis...
Biggest GWT Pitfalls? [closed]
...r.agent" value="gecko1_8" />
Where gecko1_8 is Firefox 2+, ie6 is IE, etc.
Problem: Hosted mode is very slow (on OS X at least) and does not come close to matching the 'live' changes you get when you edit things like JSPs or Rails pages and hit refresh in your browser.
Solution: You can giv...
jQuery - Trigger event when an element is removed from the DOM
...only remove elements with this method, rather than modifying/emptying HTML etc. For something more flexible, yes DOM mutation events are fine but I've been sceptic of them as you should be listening for business events in an app, not DOM ones whose structure is likely to change with further develop...
Tips for using Vim as a Java IDE? [closed]
... How about a debugger that supports step over, step through, etc?
– Donato
May 8 '15 at 17:37
1
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Howto: Clean a mysql InnoDB storage engine?
...innodb_file_per_table ?
Suppose you were to add innodb_file_per_table to /etc/my.cnf (my.ini). Can you then just run OPTIMIZE TABLE on all the InnoDB Tables?
Good News : When you run OPTIMIZE TABLE with innodb_file_per_table enabled, this will produce a .ibd file for that table. For example, if y...
Check synchronously if file/directory exists in Node.js
...ynchronous version of stat; lstatSync is the synchronous version of lstat, etc.
lstatSync tells you both whether something exists, and if so, whether it's a file or a directory (or in some file systems, a symbolic link, block device, character device, etc.), e.g. if you need to know if it exists an...
Automatically update version number
...eflection.Assembly.GetExecutingAssembly();
object[] attributes = assembly.GetCustomAttributes(typeof(System.Reflection.AssemblyFileVersionAttribute), false);
object attribute = null;
if (attributes.Length > 0)
{
attribute = attributes[0] as System.Reflection.AssemblyFileVersionAttribute;
}
...
Find and kill a process in one line using bash and regex
...lumn 2: awk '{print $2}'
sudo is optional
Run kill -9 5124, kill -9 5373 etc (kill -15 is more graceful but slightly slower)
Bonus:
I also have 2 shortcut functions defined in my .bash_profile
(~/.bash_profile is for osx, you have to see what works for your *nix machine).
p keyword
lists ...
what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?
...a generic file system which can point to any file systems like local, HDFS etc. So this can be used when you are dealing with different file systems such as Local FS, (S)FTP, S3, and others
hadoop dfs <args>
dfs is very specific to HDFS. would work for operation relates to HDFS. This ha...