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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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Android.app Fragments vs. android.support.v4.app using ViewPager?
...hat.
There are two versions of the adapters that work with ViewPager, the ones in the v4 package are meant to be used with support fragments, the ones in v13 with native fragments.
The reason why there are now two fragment implementations is historical: Fragments in the android.app package were in...
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...
When to choose mouseover() and hover() function?
...avaScript event, or trigger
that event on an element.
.hover() Bind one or two handlers
to the matched elements, to be executed when the mouse pointer
enters and leaves the elements.
Calling $(selector).hover(handlerIn, handlerOut) is shorthand for:
$(selector).mouseenter(handlerIn).mouse...
Run single test from a JUnit class using command-line
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You can make a custom, barebones JUnit runner fairly easily. Here's one that will run a single test method in the form com.package.TestClass#methodName:
import org.junit.runner.JUnitCore;
import org.junit.runner.Request;
import org.junit.runner.Result...
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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