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nonlocal keyword in Python 2.x
...sure in Python 2.6 and I need to access a nonlocal variable but it seems like this keyword is not available in python 2.x. How should one access nonlocal variables in closures in these versions of python?
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Get an element by index in jQuery
...list. I have to get the li element by using that index and change its background color. Is this possible without looping the entire list? I mean, is there any method that could achieve this functionality?
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Is it true that one should not use NSLog() on production code?
I was told this a few times in this very site, but I wanted to make sure this is really the case.
12 Answers
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How to do a scatter plot with empty circles in Python?
...lotted? The goal is to draw empty circles around some of the colored disks already plotted by scatter() , so as to highlight them, ideally without having to redraw the colored circles.
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What are MVP and MVC and what is the difference?
When looking beyond the RAD (drag-drop and configure) way of building user interfaces that many tools encourage you are likely to come across three design patterns called Model-View-Controller , Model-View-Presenter and Model-View-ViewModel . My question has three parts to it:
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How to prevent favicon.ico requests?
I don't have a favicon.ico, but my browser always makes a request for it.
11 Answers
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What is the difference between HashSet and List?
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Unlike a List<> ...
A HashSet is a List with no duplicate members.
Because a HashSet is constrained to contain only unique entries, the internal structure is optimised for searching (compared with a list) - it is consider...
Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
...ad explains how to fix it.
To summarize:
Either disable incremental linking, by going to
Project Properties
-> Configuration Properties
-> Linker (General)
-> Enable Incremental Linking -> "No (/INCREMENTAL:NO)"
or install VS2010 SP1.
Edits (@CraigRinger):...
MongoDB: Combine data from multiple collections into one..how?
...rg/display/DOCS/MapReduce#MapReduce-Outputoptions). You need to have some key in both collections that you can use as an _id.
For example, let's say you have a users collection and a comments collection and you want to have a new collection that has some user demographic info for each comment.
Le...
How to use the “number_to_currency” helper method in the model rather than view?
I would like to use to_dollar method in my model like this:
11 Answers
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