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character showing up in files. How to remove them?
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The Bash "C-style" string $'\xEF\xBB\xBF//' is a Bash feature, not particularly a Mac or OSX feature. WIth this contruct, Bash will parse the escape sequences into actual bytes before passing the command line to sed. Depending on your sed var...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
...just sends a SIGINT signal to the code that you're currently running (this idea is supported by Fernando's comment here), which is the same thing that hitting CTRL+C would do. Some processes within python handle SIGINTs more abruptly than others.
If you desperately need to stop something that is r...
Deleting all files from a folder using PHP?
...link:
/**
* Delete a file or recursively delete a directory
*
* @param string $str Path to file or directory
*/
function recursiveDelete($str) {
if (is_file($str)) {
return @unlink($str);
}
elseif (is_dir($str)) {
$scan = glob(rtrim($str,'/').'/*');
foreach($...
How do I redirect with JavaScript? [duplicate]
...hp?action=DoThis";
Then in your PHP code check for "action" in the query string and if equal to "DoThis" execute whatever function you need.
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How to connect to my http://localhost web server from Android Emulator
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this is a completed string and the only worked on my android 8.1 emulator
– CodeToLife
May 15 '18 at 19:58
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How to declare array of zeros in python (or an array of a certain size) [duplicate]
...st comprehension (in your example: [0 for unused in xrange(100)]) or using string.join for buffers.
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Returning anonymous type in C#
...7 we can use tuples to accomplish this:
public List<(int SomeVariable, string AnotherVariable)> TheMethod(SomeParameter)
{
using (MyDC TheDC = new MyDC())
{
var TheQueryFromDB = (....
select new { SomeVariable = ....,
Another...
Checking if a variable is not nil and not zero in ruby
...amp;.nonzero? # => NoMethodError: undefined method 'nonzero?' for "foo":String .... This is not safe to use on arbitrary objects.
– Tom Lord
Jun 6 '17 at 14:38
2
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Bash script to cd to directory with spaces in pathname
...$HOME/My Code"
You can expand environment variables inside double-quoted strings; this is basically what the tilde expansion is doing
cd ~/My\ Code
You can also escape special characters (such as space) with a backslash.
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How to randomly pick an element from an array
...ould define a method for doing so (Source Avinash R in Random element from string array):
import java.util.Random;
public class RandArray {
private static Random rand = new Random();
private static <T> T randomFrom(T... items) {
return items[rand.nextInt(items.length)];
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