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Declaring abstract method in TypeScript
...an implementing class. This is fair, but there are counter arguments made. Read for yourself:
https://typescript.codeplex.com/discussions/449920
Part 2:
I had another case where I wanted an abstract class, but I was prevented from using my solution above, because the defined methods in the "abstrac...
What is the difference between a weak reference and an unowned reference?
...rking with closures.
For this, I encourage you to visit the Apple docs, or read the book.
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RE error: illegal byte sequence on Mac OS X
...nput bytes caused the problem) and perform encoding conversions on demand, read on below.
The problem is that the input file's encoding does not match the shell's.
More specifically, the input file contains characters encoded in a way that is not valid in UTF-8 (as @Klas Lindbäck stated in a com...
Comparison of DES, Triple DES, AES, blowfish encryption for data
...rybody else, too). AES accepts keys of 128, 192 or 256 bits (128 bits is already very unbreakable), uses 128-bit blocks (so no issue there), and is efficient in both software and hardware. It was selected through an open competition involving hundreds of cryptographers during several years. Basicall...
Are HLists nothing more than a convoluted way of writing tuples?
... for your great answer and the many references, looks as if I got a lot of reading to do :-)
– Malte Schwerhoff
Aug 6 '12 at 10:56
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Explicitly calling return in a function or not
...turn statements explicit? I hate being inconsistent. Also I think the code reads better; one can scan the function and easily see all exit points and values.
Paul used this example:
foo = function() {
if(a) {
return(a)
} else {
return(b)
}
}
Unfortunately, one could point out that it ca...
Change column type from string to float in Pandas
... dtype that supports pd.NA (pandas' object to indicate a missing value).
Read on for more detailed explanations and usage of each of these methods.
1. to_numeric()
The best way to convert one or more columns of a DataFrame to numeric values is to use pandas.to_numeric().
This function will try to...
What is the difference between String.Empty and “” (empty string)?
...y due to string interning. Basically the performance tradeoff is peanuts - readability is more important.
– Jon Skeet
Jan 15 '09 at 8:50
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Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
I have read the quote :
data depends on the key [1NF], the whole key [2NF] and nothing but the key [3NF] .
6 Answers
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How can I use Autolayout to set constraints on my UIScrollview?
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I only realized after second reading that you are setting up a CONTAINERview and not a CONTENTview. Based on your code, I have recreated everything exactly in storyboard, and it is not scrolling. I'll edit my question with some screenshots.
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