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How to determine the first and last iteration in a foreach loop?
...s $item) {
if ($i == 0) {
// first
} else if ($i == $len - 1) {
// last
}
// …
$i++;
}
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How to open, read, and write from serial port in C?
... serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1.
2 Answers
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Overload constructor for Scala's Case Classes?
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190
Overloading constructors isn't special for case classes:
case class Foo(bar: Int, baz: Int) {...
How can I use jQuery to make an input readonly?
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13 Answers
13
Active
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Is there a Subversion command to reset the working copy?
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180
You can recursively revert like this:
svn revert --recursive .
There is no way (without writ...
Ruby ampersand colon shortcut [duplicate]
...foo }
something(&:foo)
Also, to_proc on Symbol is implemented in Ruby 1.8.7 and 1.9, so it is in fact a "ruby thing".
So, to sum up: & calls to_proc on the object and passes it as a block to the method, and Ruby implements to_proc on Symbol.
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Replace X-axis with own values
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179
Not sure if it's what you mean, but you can do this:
plot(1:10, xaxt = "n", xlab='Some Letter...
Get first and last date of current month with JavaScript or jQuery [duplicate]
...= new Date();
var firstDay = new Date(date.getFullYear(), date.getMonth(), 1);
var lastDay = new Date(date.getFullYear(), date.getMonth() + 1, 0);
or you might prefer:
var date = new Date(), y = date.getFullYear(), m = date.getMonth();
var firstDay = new Date(y, m, 1);
var lastDay = new Date(y, m...
How to get a list of all valid IP addresses in a local network? [closed]
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410
Install nmap,
sudo apt-get install nmap
then
nmap -sP 192.168.1.*
or more commonly
nmap ...
C++ convert from 1 char to string? [closed]
I need to cast only 1 char to string . The opposite way is pretty simple like str[0] .
2 Answers
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