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What is an “unwrapped value” in Swift?
I'm learning Swift for iOS 8 / OSX 10.10 by following this tutorial , and the term " unwrapped value " is used several times, as in this paragraph (under Objects and Class ):
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What is in your Mathematica tool bag? [closed]
...athematica is great, but it also often lacks critical functionality. What kind of external packages / tools / resources do you use with Mathematica?
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How to iterate a loop with index and element in Swift
Is there a function that I can use to iterate over an array and have both index and element, like Python's enumerate ?
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How to document class attributes in Python? [closed]
I'm writing a lightweight class whose attributes are intended to be publicly accessible, and only sometimes overridden in specific instantiations. There's no provision in the Python language for creating docstrings for class attributes, or any sort of attributes, for that matter. What is the expec...
How to delete multiple values from a vector?
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The %in% operator tells you which elements are among the numers to remove:
> a <- sample (1 : 10)
> remove <- c (2, 3, 5)
> a
[1] 10 5 2 7 1 6 3 4 8 9
> a %in% remove
[1] FALSE TRUE TRUE FALSE FALSE...
n-grams in python, four, five, six grams?
I'm looking for a way to split a text into n-grams.
Normally I would do something like:
15 Answers
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Are loops really faster in reverse?
...heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!
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Does have to be in the of an HTML document?
Strictly speaking, do style tags need to be inside the head of an HTML document? The 4.01 standard implies that, but it's not explicitly stated:
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Iterating each character in a string using Python
In C++, I can iterate over an std::string like this:
8 Answers
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.htaccess not working apache
I have a server from AWS EC2 service running on Linux ubuntu and I have installed apache, php, and mysql.
12 Answers
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