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What's the point of having pointers in Go?
...
I really like example taken from http://www.golang-book.com/8
func zero(x int) {
x = 0
}
func main() {
x := 5
zero(x)
fmt.Println(x) // x is still 5
}
as contrasted with
func zero(xPtr *int) {
*xPtr = 0
}
func main() {
x := 5
zero(&a...
SOAP or REST for Web Services? [closed]
...ST approach would make the developers build this custom plumbing.
http://www.infoq.com/articles/rest-soap-when-to-use-each
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...
How to get a pixel's x,y coordinate color from an image?
... > 0 ? "NOT_TRANSPARENT" : "TRANSPARENT"));
}
<script src="https://www.marvinj.org/releases/marvinj-0.7.js"></script>
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Why declare unicode by string in python?
...er '\x81' in file C:\ex.py on line 1, but no
encoding declared; see http://www.python.org/peps/pep-0263.html for details
Output of file with # coding: cp437 added:
über '\x81ber'
über u'\xfcber'
At first, Python didn't know the encoding and complained about the non-ASCII character. Once it k...
Gson custom seralizer for one variable (of many) in an object using TypeAdapter
...son/annotations/JsonAdapter.html
The page has been moved to here: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/annotations/JsonAdapter.html
Example:
private static final class Gadget {
@JsonAdapter(UserJsonAdapter2.class)
final User user;
G...
How to calculate time elapsed in bash script?
...
The use of long number of seconds is valid and documented here:
https://www.gnu.org/software/coreutils/manual/html_node/Examples-of-date.html#Examples-of-date
Busybox date
A tool used in smaller devices (a very small executable to install): Busybox.
Either make a link to busybox called date:...
Differences between Intent and PendingIntent
...g a URI
Intent i = new Intent(Intent.ACTION_VIEW,
Uri.parse("http://www.example.com"));
// Starts Implicit Activity
startActivity(i);
Pending Intent
A PendingIntent is a token that you give to a foreign application (e.g. NotificationManager, AlarmManager, Home Screen AppWidgetManager,...
Python logging not outputting anything
...ticle containing this information expressed better than my answer:
https://www.digitalocean.com/community/tutorials/how-to-use-logging-in-python-3
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JavaScript: What are .extend and .prototype used for?
...ts from other objects. See http://api.jquery.com/jQuery.extend/ or http://www.prototypejs.org/api/object/extend for some examples.
.prototype refers to the "template" (if you want to call it that) of an object, so by adding methods to an object's prototype (you see this a lot in libraries to add t...
What is Java String interning?
...eneration, and you risk
running out of PermGen space.
--
From: http://www.codeinstructions.com/2009/01/busting-javalangstringintern-myths.html
From JDK 7 (I mean in HotSpot), something has changed.
In JDK 7, interned strings are no longer allocated in the permanent generation of the Jav...