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How to determine the current shell I'm working on
... 100%: ps -ef | egrep "^\s*\d+\s+$$\s+". The ^ makes sure we're starting from the beginning of the line, the \d+ eats up the UID, the $$ matches the PID, and the \s* and \s+ account for & ensure whitespace between the other parts.
– Slipp D. Thompson
Mar ...
Long vs Integer, long vs int, what to use and when?
...d use long and int, except where you need to make use of methods inherited from Object, such as hashcode. Java.util.collections methods usually use the boxed (Object-wrapped) versions, because they need to work for any Object, and a primitive type, like int or long, is not an Object.
Another differ...
Table is marked as crashed and should be repaired
...
Run this from your server's command line:
mysqlcheck --repair --all-databases
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In-memory size of a Python structure
...
The recommendation from an earlier question on this was to use sys.getsizeof(), quoting:
>>> import sys
>>> x = 2
>>> sys.getsizeof(x)
14
>>> sys.getsizeof(sys.getsizeof)
32
>>> sys.getsizeof('this'...
Why do people say that Ruby is slow? [closed]
...n't find much news on
Ruby 2.0 - I take it we're a good few
years away from that then?
Most folks are waiting for Ruby 1.9.1. I myself am waiting for Rails 3.1 on Ruby 1.9.1 on JRuby.
Finally, please remember that a lot of developers choose Ruby because it makes programming a more joyful exp...
What requests do browsers' “F5” and “Ctrl + F5” refreshes generate?
...the same page even if the content is changed, because it may load the page from cache. But Ctrl-F5 forces a cache refresh, and will guarantee that if the content is changed, you will get the new content.
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Why does this CSS margin-top style not work?
... each other because their margins are equal.
Here are the relevant points from the W3C spec:
8.3.1 Collapsing margins
In CSS, the adjoining margins of two or more boxes (which might or might not be siblings) can combine to form a single margin. Margins that combine this way are said to col...
void in C# generics?
...
(Joke) And he can still return void from those would-be-void methods, with return System.Runtime.Serialization.FormatterServices.GetUninitializedObject(typeof(void));. It will be a boxed void, though.
– Jeppe Stig Nielsen
...
Linq Query keeps throwing “Unable to create a constant value of type System.Object…”, Why?
...ion Object "User" with integer data type "userid" (x.User.Equals(userid))
from user in myshop.UserPermissions.Where(x => x.IsDeleted == false && x.User.Equals(userid))
and correct Query is x.UserId.Equals(userid)
from user in myshop.UserPermissions.Where(x => x.IsDeleted == false &...
Override browser form-filling and input highlighting with HTML/CSS
...n use:
<form autocomplete="off">
regarding the coloring-problem:
from your screenshot i can see that webkit generates the following style:
input:-webkit-autofill {
background-color: #FAFFBD !important;
}
1) as #id-styles are even more important than .class styles, the following may ...