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Cartesian product of x and y array points into single array of 2D points
...
[2, 5],
[3, 5]])
See Using numpy to build an array of all combinations of two arrays for a general solution for computing the Cartesian product of N arrays.
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How do I auto size a UIScrollView to fit its content
...
The best method I've ever come across to update the content size of a UIScrollView based on its contained subviews:
Objective-C
CGRect contentRect = CGRectZero;
for (UIView *view in self.scrollView.subviews) {
contentRect = CGRectUnion(cont...
Scala underscore - ERROR: missing parameter type for expanded function
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Installing libv8 gem on OS X 10.9+
...n older versions of libv8 as mentioned in the pull request (https://github.com/cowboyd/libv8/pull/95). Please try bumping up the version of libv8 in your Gemfile (or) a bundle update should suffice. Hope this helps.
From the libv8 README
Bring your own V8
Because libv8 is the interface for the V8 en...
Why use def main()? [duplicate]
...tion could be:
import sys
def main(argv):
# My code here
pass
if __name__ == "__main__":
main(sys.argv)
This means you can call main() from other scripts (or interactive shell) passing custom parameters. This might be useful in unit tests, or when batch-processing. But remember that t...
What is the ellipsis (…) for in this method signature?
...er2.withRecipientJids(jid1, jid2, jid78_a, someOtherJid);
See more here:
http://java.sun.com/j2se/1.5.0/docs/guide/language/varargs.html
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Java Reflection: How to get the name of a variable?
...ormation is available through reflection. See the "Update" section below.
Complete information is often stored in class files. One compile-time optimization is to remove it, saving space (and providing some obsfuscation). However, when it is is present, each method has a local variable table attrib...
What is the purpose of the single underscore “_” variable in Python?
What is the meaning of _ after for in this code?
5 Answers
5
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RE error: illegal byte sequence on Mac OS X
I'm trying to replace a string in a Makefile on Mac OS X for cross-compiling to iOS. The string has embedded double quotes. The command is:
...
What’s the difference between ScalaTest and Scala Specs unit test frameworks?
... this space of choice easier to navigate, I provide a decision tree here:
http://www.scalatest.org/quick_start
The matcher syntax is also different between ScalaTest and specs. In ScalaTest I tried to see how far I could go with operator notation, and ended up with matcher expressions that read ve...