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How to create a fixed-size array of objects
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The best you are going to be able to do for now is create an array with an initial count repeating nil:
var sprites = [SKSpriteNode?](count: 64, repeatedValue: nil)
You can then fill in whatever values you want.
In Swift 3.0 :
var sprites = [SKSpriteNode?](repea...
How do pointer to pointers work in C?
...characters, but also to other pointers. E.g.:
const char **cp = &c;
Now cp points to c, that is, it contains the address of c (which is 58). We can go even further. Consider:
const char ***cpp = &cp;
Now cpp stores the address of cp. So it has value 55 (based on the example above), and...
MySQL indexes - what are the best practices?
I've been using indexes on my MySQL databases for a while now but never properly learnt about them. Generally I put an index on any fields that I will be searching or selecting using a WHERE clause but sometimes it doesn't seem so black and white.
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Inspect attached event handlers for any DOM element
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There now is an extension for Firebug called EventBug and reportedly a similar feature in chrome/safari. I'll also link to a more popular discussion on this: stackoverflow.com/questions/446892/…
– Nickolay
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What is the documents directory (NSDocumentDirectory)?
...ch with @"~/Documents". Hardcoding paths is never a good idea. It may work now, but if Apple ever chooses to rename or move the Documents directory, your app will break. NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); will always give you the correct directory!
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How do I migrate a model out of one django app and into a new one?
I have a django app with four models in it. I realize now that one of these models should be in a separate app. I do have south installed for migrations, but I don't think this is something it can handle automatically. How can I migrate one of the models out of the old app into a new one?
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Can You Get A Users Local LAN IP Address Via JavaScript?
I know the initial reaction to this question is "no" and "it can't be done" and "you shouldn't need it, you are doing something wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as muc...
Interfaces with static fields in java for sharing 'constants'
... syntactic sugar, and inherit from such interface is an horrible error. I know Sun did this, but they also made tons of other basic errors, that's not an excuse to mimic them.
– gizmo
Nov 26 '08 at 13:17
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...rer :) I didn't realize the efficiency difference - that's very useful to know. Same for the hoisting effect - tricky, indeed. Thanks for such a great answer, I learned a lot from it!
– Leo
Dec 22 '10 at 11:09
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Find JavaScript function definition in Chrome
... this but in the browser would be much better. I mean, the browser has to know this, so why not expose it? What I expected was something like:
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