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Fastest way to remove first char in a String
... result to a variable, possibly data itself.)
I wouldn't take performance into consideration here unless it was actually becoming a problem for you - in which case the only way you'd know would be to have test cases, and then it's easy to just run those test cases for each option and compare the re...
Why does Java's Arrays.sort method use two different sorting algorithms for different types?
...Since primitive types have no identity (there is no way to distinguish two ints with the same value), this does not matter for them. But for reference types, it could cause problems for some applications. Therefore, a stable merge sort is used for those.
OTOH, a reason not to use the (guaranteed n*...
Django migration strategy for renaming a model and relationship fields
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Thank you for this! I think that the key part is converting all foreign keys, in or out of the model to be renamed, to IntegerField. This worked perfectly for me, and has the added advantage that they get recreated with the correct name. Naturally I would advise reviewing a...
How do you load custom UITableViewCells from Xib files?
...u load custom UITableViewCell from Xib files? Doing so allows you to use Interface Builder to design your cells. The answer apparently is not simple due to memory managment issues. This thread mentions the issue and suggests a solution, but is pre NDA-release and lacks code. Here's a long threa...
In JavaScript, is returning out of a switch statement considered a better practice than using break?
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@Queue You're correct in that the boolean should be converted to integer, but I'd do it this way: return [100,0][foo == "bar" & 1];
– ic3b3rg
Jan 24 '13 at 21:32
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Retain cycle on `self` with blocks
... I think it's relevant to a lot of Objective-C programmers who are getting into blocks.
9 Answers
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What's the difference between interface and @interface in java?
...at any rate I've been working on a small Java project this week, and using Intellij IDEA as my IDE, for a change of pace from my regular .Net development.
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...of non-void function [-Wreturn-type]
We can turn this particular warning into an error using the -Werror=return-type flag. I also like to use -Wextra -Wconversion -pedantic for my own personal projects.
As ComicSansMS mentions in Visual Studio this code would generate C4716 which is an error by d...
What is the difference between `new Object()` and object literal notation?
...umber"
The object created using the above method (new Object(1)) would be converted to object type if a property is added to it.
var obj = new Object(1);
typeof obj // "number"
obj.a = 2;
typeof obj // "object"
If the object is a copy of a child class of object, we could add the property without ...
Filtering a list based on a list of booleans
...olution) create np.array from both lists, use boolean indexing and finally converting array back to list with tolist() method. To be precise, you should include those objects creation into time comparison. Then, using itertools.compress will be still the fastest solution.
– Ner...