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Batch files - number of command line arguments
...iant of for only works for arguments that look like file names, not option strings such as -?. Using quotes (for %%i in ("%*") ...) works for argument like -? but again fails for quoted arguments because of nested quotes. The only robust way seems to involve shift...
– Ferdin...
Why does Python code use len() function instead of a length method?
...that python has a len() function that is used to determine the size of a string, but I was wondering why it's not a method of the string object.
...
Random string generation with upper case letters and digits
I want to generate a string of size N.
31 Answers
31
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How to assign a Git SHA1's to a file without Git?
...having Git installed. Note that "\0" is the NULL-byte, not a two-character string.
For example, the hash of an empty file:
sha1("blob 0\0") = "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"
$ touch empty
$ git hash-object empty
e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
Another example:
sha1("blob 7\...
Cannot refer to a non-final variable inside an inner class defined in a different method
...access the variables.
@Ankur: You could do this:
public static void main(String args[]) {
int period = 2000;
int delay = 2000;
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
// Variables as member variables instead of local variables in main()
...
sys.argv[1] meaning in script
...evel.
For every invocation of Python, sys.argv is automatically a list of strings representing the arguments (as separated by spaces) on the command-line. The name comes from the C programming convention in which argv and argc represent the command line arguments.
You'll want to learn more about l...
Escaping regex string
...se the re.escape() function for this:
4.2.3 re Module Contents
escape(string)
Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
A simplistic example, search any occu...
How can I hash a password in Java?
...der enc = Base64.getEncoder();
System.out.printf("salt: %s%n", enc.encodeToString(salt));
System.out.printf("hash: %s%n", enc.encodeToString(hash));
Here's a utility class that you can use for PBKDF2 password authentication:
import java.security.NoSuchAlgorithmException;
import java.security.Secu...
A better similarity ranking algorithm for variable length strings
I'm looking for a string similarity algorithm that yields better results on variable length strings than the ones that are usually suggested (levenshtein distance, soundex, etc).
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Managing relationships in Laravel, adhering to the repository pattern
...ansfer objects instead of eloquent objects? Of course this would imply an extra conversion from eloquent to dto's but this way, at least, you isolate your controllers/views from the current orm implementation.
– federivo
Sep 16 '13 at 14:14
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