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Reading a file line by line in Go
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From the same docs.. "If ReadString encounters an error before finding a delimiter, it returns the data read before the error and the error itself (often io.EOF)." So you can just check for io.EOF error and know your are done.
– eduncan911
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How do I determine k when using k-means clustering?
... clear is how you choose the value of k. Is it just a matter of trial and error, or is there more to it?
19 Answers
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How do you effectively model inheritance in a database?
... to confusion. "TPT" is supertype-subtype. "TPH" is Unnormalised, a gross error. "TPH" is even less Normalised, another gross error.
– PerformanceDBA
Nov 10 '10 at 21:33
45
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How to convert / cast long to String?
...) ?
– Marcelo Assis
Feb 8 '12 at 13:05
4
@MarceloAssis.. concat is about 2x slower. If performanc...
Removing duplicates in lists
...hable. This means, that this does not work for a list of dictionaries. TypeError: unhashable type: 'dictlist'
– CraZ
May 16 '18 at 17:27
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How to get Locale from its String representation in Java?
..., String country)
Here is a sample code :)
// May contain simple syntax error, I don't have java right now to test..
// but this is a bigger picture for your algo...
public String localeToString(Locale l) {
return l.getLanguage() + "," + l.getCountry();
}
public Locale stringToLocale(String ...
Parsing command-line arguments in C?
..._MODE, WORD_MODE, LINE_MODE } mode;
bool isCaseInsensitive;
};
static error_t parse_opt(int key, char *arg, struct argp_state *state) {
struct arguments *arguments = state->input;
switch (key) {
case 'l': arguments->mode = LINE_MODE; break;
case 'w': arguments->mode = W...
Useful code which uses reduce()? [closed]
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answered Jul 17 '10 at 17:05
ssolerssoler
3,47622 gold badges2525 silver badges3030 bronze badges
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How to count number of files in each directory?
... they don't contain newlines (and quietly persuade the guilty party of the error of their ways).
If you're interested in the count of the files in each sub-directory of the current directory, counting any files in any sub-directories along with the files in the immediate sub-directory, then I'd a...
In pure functional languages, is there an algorithm to get the inverse function?
... "chase" a solution while we explore a design space using "undefined" and "error" during development). A "bottom" x has the type a. It "inhabits" (or is a "value") of every type. This is a logical contradiction, since types are propositions and there is no value which satisfies every proposition....