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Capturing URL parameters in request.GET
...ll find the request method (in this case "GET", and for submitted forms usually "POST") in request.method. In some cases it's useful to check that it matches what you're expecting.
Update: When deciding whether to use the URL path or the query parameters for passing information, the following may h...
When should I use File.separator and when File.pathSeparator?
...ystem
pathSeparatorChar: Same as pathSeparator but it’s char
Note that all of these are final variables and system dependent.
Here is the java program to print these separator variables.
FileSeparator.java
import java.io.File;
public class FileSeparator {
public static void main(String[]...
Should bower_components be gitignored?
...d by others (e.g., you're building a web app), you should always check installed packages into source control.
Make sure to check out the link in the quote, it discusses some pro and cons. The main pro it mentions is that checking them in ensures that your dependencies are always available, as lon...
Camera orientation issue in Android
... This doesn't seem to work on some devices, it returns 0 for all orientations.. I know it happens on Galaxy S Infuse and Sony Xperia Arc, and S II.. Interesting thing here is that when these same images are selected from gallery, the content provider has the proper orientation value.. ...
Select multiple columns in data.table by their numeric indices
...
For versions of data.table >= 1.9.8, the following all just work:
library(data.table)
dt <- data.table(a = 1, b = 2, c = 3)
# select single column by index
dt[, 2]
# b
# 1: 2
# select multiple columns by index
dt[, 2:3]
# b c
# 1: 2 3
# select single column by na...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...
Indeed, that won't be efficient at all.
You could always write an extension method:
public static TValue GetValueOrDefault<TKey,TValue>
(this IDictionary<TKey, TValue> dictionary, TKey key)
{
TValue ret;
// Ignore return value
dic...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...ble towards the existing object. The docs explain the difference between shallow and deep copies:
The difference between shallow and deep copying is only relevant for
compound objects (objects that contain other objects, like lists or
class instances):
A shallow copy constructs a new...
Can you write virtual functions / methods in Java?
...
From wikipedia
In Java, all non-static methods are by
default "virtual functions." Only
methods marked with the keyword final,
which cannot be overridden, along with
private methods, which are not
inherited, are non-virtual.
...
Is bool a native C type?
... in the current C - C99, but not in C89/90.
In C99 the native type is actually called _Bool, while bool is a standard library macro defined in stdbool.h (which expectedly resolves to _Bool). Objects of type _Bool hold either 0 or 1, while true and false are also macros from stdbool.h.
Note, BTW, t...
Why use 'git rm' to remove a file instead of 'rm'?
...ml
rm 'index.html'
$ git status -s
D index.html
However you can do this all in one go with just git rm
$ git status -s
$ git rm index.html
rm 'index.html'
$ ls
lib vendor
$ git status -s
D index.html
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