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How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
... that, I'm happy to get a CGImage or anything else you'd like that's available. I'd like to write this function:
11 Answers...
What does “fragment” mean in ANTLR?
...ent is somewhat akin to an inline function: It makes the grammar more readable and easier to maintain.
A fragment will never be counted as a token, it only serves to simplify a grammar.
Consider:
NUMBER: DIGITS | OCTAL_DIGITS | HEX_DIGITS;
fragment DIGITS: '1'..'9' '0'..'9'*;
fragment OCTAL_DIGIT...
Understanding garbage collection in .NET
Consider the below code:
2 Answers
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Index all *except* one item in python
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For a list, you could use a list comp. For example, to make b a copy of a without the 3rd element:
a = range(10)[::-1] # [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
b = [x for i,x in enumerate(a) if i!=3] # [9, 8, 7, 5, 4, 3, 2, 1, 0]
This is very general, and can be use...
What's the difference between => , ()=>, and Unit=>
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Call-by-Name: => Type
The => Type notation stands for call-by-name, which is one of the many ways parameters can be passed. If you aren't familiar with them, I recommend taking some time to read that wikipedia article, even...
GitHub pull request showing commits that are already in target branch
I'm trying to review a pull request on GitHub to a branch that isn't master. The target branch was behind master and the pull request showed commits from master, so I merged master and pushed it to GitHub, but the commits and diff for them still appear in the pull request after refreshing. I've doub...
How to use double or single brackets, parentheses, curly braces
I am confused by the usage of brackets, parentheses, curly braces in Bash, as well as the difference between their double or single forms. Is there a clear explanation?
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Python Dictionary to URL Parameters
...ictionary to a string for use as URL parameters. I am sure that there is a better, more Pythonic way of doing this. What is it?
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Is there replacement for cat on Windows
I need to join two binary files with a *.bat script on Windows.
11 Answers
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Check for current Node Version
I need to programmatically access the current node version running in a library I am writing. Can't seem to find this in the docs.
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