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How to tell if rails is in production?
...th an inline ENV var. That said, if this was done then a script / alias / etc should live somewhere on-disk, which will include the RAILS_ENV var. One can search the disk for it, such as with ack
– New Alexandria
Jan 9 '13 at 3:29
...
List comprehension: Returning two (or more) items for each item
...he form:
result = []
for n in some_data:
result += some_operation()
## etc.
(I.e. for loops intended to produce a side effect on a list or similar data structure)
Can be refactored into a declarative map/reduce/filter implementation.
...
How to split a long regular expression into multiple lines in JavaScript?
...pace in the regular expression string (always use \s, \s+, \s{1,x}, \t, \n etc).
(() => {
const createRegExp = (str, opts) =>
new RegExp(str.raw[0].replace(/\s/gm, ""), opts || "");
const yourRE = createRegExp`
^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"...
How can I find WPF controls by name or type?
...urn null;
T foundChild = null;
int childrenCount = VisualTreeHelper.GetChildrenCount(parent);
for (int i = 0; i < childrenCount; i++)
{
var child = VisualTreeHelper.GetChild(parent, i);
// If the child is not of the request child type child
T childType = child as T;
if (...
Benefit of using Parcelable instead of serializing object
...ted, and uses a format that other people use): ProtocolBuffers, JSON, XML, etc. It's a shame the Android library really sucks in this regard.
– user166390
Jan 15 '13 at 6:39
...
Maintain aspect ratio of div but fill screen width and height in CSS?
...object {
width: 80%; /* whatever width here, can be fixed no of pixels etc. */
height: 0px;
padding-bottom: 56.25%;
}
.object .content {
position: absolute;
top: 0px;
left: 0px;
height: 100%;
width: 100%;
box-sizing: border-box;
-moz-box-sizing: border-box;
...
How do I use WebRequest to access an SSL encrypted site using https?
...lem! For LetsEncrypt with nginX on linux, the protocols are defined here: /etc/letsencrypt/options-ssl-nginx.conf
– Jerther
Oct 3 '17 at 13:18
...
How do I measure execution time of a command on the Windows command line?
... In case you want to use internal dos commands (eg.: dir, echo, del, etc.) don't forget to insert "cmd /c": Measure-Command { cmd /c dir /s c:\windows > nul }
– LietKynes
Jan 10 '12 at 10:49
...
What does java.lang.Thread.interrupt() do?
...ead is interrupted before it blocks on Object.wait(..) or Thread.sleep(..) etc., this is equivalent to it being interrupted immediately upon blocking on that method, as the following example shows.
public class InterruptTest {
public static void main(String[] args) {
Thread.currentThre...
Equivalent to 'app.config' for a library (DLL)
...d probably be passed as method arguments in constructors, factory methods, etc. by whoever is calling your library. This prevents calling applications from accidentally reusing configuration entries that were expected by the class library.
That said, XML configuration files are extremely handy, so ...