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Java code To convert byte to Hexadecimal
I have an array of bytes.
I want each byte String of that array to be converted to its corresponding hexadecimal values.
19...
How to get RelativeLayout working with merge and include?
..., unfortunately. As you can't have a View as the xml root, we must have an extra ViewGroup there...
– Rafael Nobre
Jul 24 '13 at 13:20
13
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remove legend title in ggplot
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This replaces the title with an empty string and therefore causes extra space between the label and the legend box, which would be visible only if the legend had a box or background of a color different from where it is positioned. So it's alright for a quick and...
Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
...to open and use a .so or .dll that wasnt there at compile that or just add extra functionality, like plugins.
– rapadura
Mar 13 '12 at 16:49
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Difference between -pthread and -lpthread while compiling
...nswer, but, IMO, it doesn't provide enough context and insight. Hence this extra answer.
-lpthread is a solution for a problem that no longer exists (since ~2005).
In the old days there were proprietary implementations of Pthreads API that weren't POSIX-compliant, like LinuxThreads. POSIX standard ...
Append text to input field
...are two options. Ayman's approach is the most simple, but I would add one extra note to it. You should really cache jQuery selections, there is no reason to call $("#input-field-id") twice:
var input = $( "#input-field-id" );
input.val( input.val() + "more text" );
The other option, .val() can ...
How can I escape a double quote inside double quotes?
How can I escape double quotes inside a double string in Bash?
8 Answers
8
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How to replace a character by a newline in Vim
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Use \r instead of \n.
Substituting by \n inserts a null character into the text. To get a newline, use \r. When searching for a newline, you’d still use \n, however. This asymmetry is due to the fact that \n and \r do slightly different things:
\n matches an end of line (newline...
How do I find the width & height of a terminal window?
... wrapper for that. E.g in Perl you can use Term::Size:
use Term::Size qw( chars );
my ( $columns, $rows ) = chars \*STDOUT;
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ActiveRecord: List columns in table from console
...ou can just type the model name:
> User
gives:
User(id: integer, name: string, email: string, etc...)
In rails four, you need to establish a connection first:
irb(main):001:0> User
=> User (call 'User.connection' to establish a connection)
irb(main):002:0> User.connection; nil #call ...