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How to check if a value exists in an array in Ruby
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Note that if you have many values in your array, they will all be checked one after the other (i.e. O(n)), while that lookup for a hash will be constant time (i.e O(1)). So if you array is constant, for example, it is a good idea to use a Set instead. E.g:
require 'set'
ALLOWED_METHODS = Set[:to_s...
How can I make SQL case sensitive string comparison on MySQL?
...that start with A or a. To make this search case sensitive, make sure that one of the operands has a case sensitive or binary collation. For example, if you are comparing a column and a string that both have the latin1 character set, you can use the COLLATE operator to cause either operand to have t...
How do you get centered content using Twitter Bootstrap?
...the class .text-center.
Original Answer (pre 2.3.0)
You need to define one of the two classes, row or span12 with a text-align: center. See http://jsfiddle.net/xKSUH/ or http://jsfiddle.net/xKSUH/1/
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What do numbers using 0x notation mean?
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@Luc The first one is correct. Although more often I see just 0xffffffff and such. (0xffffffff = -1 for 32-bit int assuming 2's complement)
– Mysticial
Jul 23 '13 at 16:30
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Converting ISO 8601-compliant String to java.util.Date
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Unfortunately, the time zone formats available to SimpleDateFormat (Java 6 and earlier) are not ISO 8601 compliant. SimpleDateFormat understands time zone strings like "GMT+01:00" or "+0100", the latter according to RFC # 822.
Even if Java 7 added s...
Split string with delimiters in C
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@Dojo: It remembers it; that's one of the reasons it is problematic. It would be better to use strtok_s() (Microsoft, C11 Annex K, optional) or strtok_r() (POSIX) than plain strtok(). Plain strtok() is evil in a library function. No function calling the...
What's a good Java, curses-like, library for terminal applications? [closed]
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Nice one, too bad though that it requires native libraries. I'll give this a shot and see how far I get.
– Francisco Canedo
Jan 16 '09 at 12:03
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Constants in Objective-C
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Overall, great answer, with one glaring caveat: you DO NOT want to test for string equality with the == operator in Objective-C, since it tests memory address. Always use -isEqualToString: for this. You can easily get a different instance by comparing M...
Timeout for python requests.get entire response
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Yes it is, in some circumstances. One of those circumstances happens to be yours. =) I invite you to look at the code if you're not convinced.
– Lukasa
Feb 23 '14 at 20:57
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How do I convert an enum to a list in C#? [duplicate]
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Anyone considering this, please note that the performance of ToString() on an enum is terrible, internally it uses reflection. It's 1000x slower (no exaggeration) than a string -> enum lookup table.
– Ni...