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Is there a more elegant way of adding an item to a Dictionary safely?
... imageUploader: {
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How can I use redis with Django?
...w exactly does it work? Is it used as a layer between django and my rdbms, by caching the rdbms queries somehow?
5 Answers...
How to delete a word and go into insert mode in Vim?
...
You can use "change inner word" by typing "ciw" to delete a word your cursor is on.
The "inner" and "a" commands are great in Vim, also try "ci{" inside a {} block, or "ca{" if you also wish to remove the {} characters too. To translate these commands to ...
What is the difference between Class Path and Build Path
...ally a sequence of JAR file names and directory names. The classpath used by the compiler and the runtime system don't have to be the same, but they typically should be, especially for a small project.
Buildpath is not standard Java terminology. It is the term for the richer way that a typical ID...
How to automatically navigate to the current class in Intellij Idea Project Tool Window?
... on Gnome, because Gnome maps Atl-F1 to show the Gnome Activities Overview by default (which is redundant if you have a Windows/Cmd key on your keyboard). Just go into Settings > Keyboard > "Show the activities overview", click and then hit Backspace to clear the keyboard mapping. Then it w...
ViewPager.setOffscreenPageLimit(0) doesn't work as expected
...iewPager is default to load the next page(Fragment) which you can't change by setOffscreenPageLimit(0). But you can do something to hack.
You can implement onPageSelected function in Activity containing the ViewPager. In the next Fragment(which you don't want to load), you write a function let's sa...
C++ STL Vectors: Get iterator from index?
So, I wrote a bunch of code that accesses elements in an stl vector by index[], but now I need to copy just a chunk of the vector. It looks like vector.insert(pos, first, last) is the function I want... except I only have first and last as ints. Is there any nice way I can get an iterator to these...
How to prevent browser page caching in Rails
... the browser is compliant with HTTP 1.1. Section 14.9.2 What May be Stored by Caches
– gaqzi
Oct 7 '14 at 2:05
28
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What is the difference between named and positional parameters in Dart?
... not specify a value.
Positional optional parameters
A parameter wrapped by [ ] is a positional optional parameter. Here is an example:
getHttpUrl(String server, String path, [int port=80]) {
// ...
}
In the above code, port is optional and has a default value of 80.
You can call getHttpUr...
super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
...
Also, if you can't change class B, you can fix the error by using multiple inheritance.
class B:
def meth(self, arg):
print arg
class C(B, object):
def meth(self, arg):
super(C, self).meth(arg)
print C().meth(1)
...