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What is the easiest way to duplicate an activerecord record?
...initely DO NOT use clone. As other posters have mentioned the clone method now delegates to using Kernel#clone which will copy the id. Use ActiveRecord::Base#dup from now on
– bradgonesurfing
Aug 5 '11 at 13:57
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Differences between Agda and Idris
...l back end for Agda which uses the same back end as Idris, via C. I don't know how well maintained it is. A primary goal of Idris will always be to generate efficient code - we can do a lot better than we currently do, but we're working on it.
The type systems in Agda and Idris are pretty similar i...
How to add new column to MYSQL table?
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@StevenTrainor what do you mean by textbox? if you mean an input what type='text' write $column = $_POST['textbox'];
– Abdullah Salma
Apr 19 '13 at 21:47
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What are the special dollar sign shell variables?
...like construct of all positional parameters, {$1, $2, $3 ...}.
"$*" is the IFS expansion of all positional parameters, $1 $2 $3 ....
$# is the number of positional parameters.
$- current options set for the shell.
$$ pid of the current shell (not subshell).
$_ most recent parameter (or the abs path ...
Regex - Should hyphens be escaped? [duplicate]
...eful answer. Turns out that in Eclipse Luna, the Java Linter will complain if you try to escape it.
– Keab42
Nov 19 '14 at 12:51
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How can I show dots (“…”) in a span with hidden overflow?
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span {
display: inline-block;
width: 180px;
white-space: nowrap;
overflow: hidden !important;
text-overflow: ellipsis;
}
<span>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever s...
How to call an async method from a getter or setter?
...: I don't see why point (2) wouldn't work in that case. Just implement INotifyPropertyChanged, and then decide whether you want the old value returned or default(T) while the asynchronous update is in flight.
– Stephen Cleary
Nov 19 '13 at 11:57
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Capture characters from standard input without waiting for enter to be pressed
... manpage). See Curses at Wikipedia.
I would recommend you to use curses if you aim for cross platform compatibility. That said, I'm sure there are functions that you can use to switch off line buffering (I believe that's called "raw mode", as opposed to "cooked mode" - look into man stty). Curses...
How to create an infinite loop in Windows batch file?
... I disagree with jave.web - there's nothing wrong with goto if you use it correctly. For example, I'm about to use it to ensure the program that is run within the loop auto-respawns if it dies for whatever reason. It may however be wise to put a small wait in the loop to stop cpu thra...
Read each line of txt file to new array element
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If you don't need any special processing, this should do what you're looking for
$lines = file($filename, FILE_IGNORE_NEW_LINES);
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