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Return first match of Ruby regex
I'm looking for a way to perform a regex match on a string in Ruby and have it short-circuit on the first match.
5 Answers
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In javascript, is an empty string always false as a boolean?
...this behavior:
ToBoolean
The result is false if the argument is the empty String (its length is zero);
otherwise the result is true
Quote taken from http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
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How can I generate UUID in C#
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You can also do String UUID = Guid.NewGuid().ToString()
– Justin
Dec 12 '11 at 17:41
11
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Literal notation for Dictionary in C#?
...lection initializer syntax, but you still need to make a new Dictionary<string, string> object first as the shortcut syntax is translated to a bunch of Add() calls (like your code):
var data = new Dictionary<string, string>
{
{ "test", "val" },
{ "test2", "val2" }
};
In C# 6,...
PDO get the last ID inserted
...t;execute();
$LAST_ID = $this->conn->lastInsertId(); //always return string(1)=0
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leading zeros in rails
...untime. Every language has its own way to pad zeros - for Ruby you can use String#rjust. This method pads a string (right-justified) so that it becomes a given length, using a given padding character.
str.rjust(integer, padstr=' ') → new_str
If integer is greater than the length of str, r...
Match multiline text using regular expression
...end of each line (otherwise they only match at the start/end of the entire string).
Pattern.DOTALL or (?s) tells Java to allow the dot to match newline characters, too.
Second, in your case, the regex fails because you're using the matches() method which expects the regex to match the entire strin...
How can foreign key constraints be temporarily disabled using T-SQL?
...e like that can be a nightmare if the failing data is at the end of a long string of linked constraints.
– Jimoc
Oct 1 '08 at 18:44
1
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Why does Java's hashCode() in String use 31 as a multiplier?
Per the Java documentation, the hash code for a String object is computed as:
13 Answers
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Should I implement __ne__ in terms of __eq__ in Python?
... work (assuming SQLAlchemy knows how to insert MyClassWithBadNE into a SQL string at all; this can be done with type adapters without MyClassWithBadNE having to cooperate at all), passing the expected proxy object to filter, while:
results = session.query(MyTable).filter(MyClassWithBadNE() != MyTa...