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Is Ruby pass by reference or by value?
...has a reference to. (Even this isn't bulletproof, though — both of the standard cloning methods do a shallow copy, so the instance variables of the clone still point to the same objects that the originals did. If the objects referenced by the ivars mutate, that will still show up in the copy, sinc...
Ensure that HttpConfiguration.EnsureInitialized()
I've installed Visual Studio 2013 and when I run my app I get the error below.
14 Answers
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SearchView's OnCloseListener doesn't work
I'm trying to add support for the SearchView in the Android 3.0+ ActionBar, but I can't get the OnCloseListener to work.
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Remove last character from string. Swift language
...lo, Worl" (modifying)
Swift 3.0
The APIs have gotten a bit more swifty, and as a result the Foundation extension has changed a bit:
var name: String = "Dolphin"
var truncated = name.substring(to: name.index(before: name.endIndex))
print(name) // "Dolphin"
print(truncated) // "Dolphi"
Or t...
JavaScript equivalent of PHP's in_array()
...ide this backup for older browser for a long time, though. @harto: yes, it converts this.length to a Number that can be represented as a 32-bit unsigned integer. A native Array can only have a length that already complies with this, but the spec states that you can call Array.prototype methods on na...
How to define an enum with string value?
I am trying to define an Enum and add valid common separators which used in CSV or similar files. Then I am going to bind it to a ComboBox as a data source so whenever I add or remove from the Enum definition, I would not need to change anything in the combo box.
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Using Regular Expressions to Extract a Value in Java
...blic static void main(String[] args) {
// create matcher for pattern p and given string
Matcher m = p.matcher("Testing123Testing");
// if an occurrence if a pattern was found in a given string...
if (m.find()) {
// ...then you can use group() methods.
System.out.prin...
img tag displays wrong orientation
...be to remove orientation metadata and flip the image. Imagemagick provides convert -autoorient function which will do this.
– saurabheights
Mar 9 '16 at 7:27
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How to list variables declared in script in bash?
... of the other responses to the OP, I'm left < 100% sure that set always converts newlines within the value to \n, which this solution relies upon to avoid the "DejayClayton" problem. Perhaps that's a modern behavior? Or a compile-time variation? Or a set -o or shopt option setting? If you know of...
How can I get the count of milliseconds since midnight for the current?
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and if somebody defines a timezone not on second border or adds a leap-millisecond this breaks.=))
– Markus Mikkolainen
Aug 2 '12 at 20:40
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