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Check if string matches pattern
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From the docs on re.match: If zero or more characters at the beginning of string match the regular expression pattern. I just spent like 30 minutes trying to understand why I couldn't match something at the end of a string. Seems like it's not possible with match...
Best way to serialize an NSData into a hexadeximal string
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Nice, but two suggestions: (1) I think appendFormat is more efficient for large data since it avoids creating an intermediate NSString and (2) %x represents an unsigned int rather than unsigned long, although the difference is harmless.
– svachalek
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How do I create a unique ID in Java? [duplicate]
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How do I tokenize a string in C++?
... std::string::npos, and extract the contents using std::string::substr.
A more fluid (and idiomatic, but basic) version for splitting on whitespace would use a std::istringstream:
auto iss = std::istringstream{"The quick brown fox"};
auto str = std::string{};
while (iss >> str) {
proces...
Test if characters are in a string
...unction
grepl(value, chars, fixed = TRUE)
# TRUE
Use ?grepl to find out more.
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Fastest way(s) to move the cursor on a terminal command line?
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Since this hasn't been closed yet, here are a few more options.
Use Ctrl+x followed by Ctrl+e to open the current line in the editor specified by $FCEDIT or $EDITOR or emacs (tried in that order).
If you ran the command earlier, hit Ctrl+r for a reverse history search and ...
Why should I use a pointer rather than the object itself?
...appropriate tool for the job. In almost all situations, there is something more appropriate and safer than performing manual dynamic allocation and/or using raw pointers.
Dynamic allocation
In your question, you've demonstrated two ways of creating an object. The main difference is the storage dur...
How to set DOM element as the first child?
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Calculate the median of a billion numbers
...low that value, and (b) resume sending their sorted data from that point.
More generally, there's probably a clever challenge-response guessing game that the control machine can play with the 99 sorting machines.
This involves round-trips between the machines, though, which my simpler first versio...
xkcd style graphs in MATLAB
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+1 for EXPORT_FIG. Turning all my graphs more pleasing thanks to anti-aliasing.
– Yamaneko
Oct 4 '12 at 6:40
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