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Array include any value from another array?
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(cheeses & foods).empty?
As Marc-André Lafortune said in comments, & works in linear time while any? + include? will be quadratic. For larger sets of data, linear time will be faster. For small data sets, any? + include? may be faster as shown by Lee Jarvis' answer -- probably ...
How do I time a method's execution in Java?
...curacy better than currentTimeMillis(), though it usually does. forums.sun.com/thread.jspa?messageID=9460663 and simongbrown.com/blog/2007/08/20/…
– James Schek
Oct 8 '08 at 17:20
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CSS: Change image src on img:hover
...t as the background as like
div {
background: url('http://dummyimage.com/100x100/000/fff');
}
div:hover {
background: url('http://dummyimage.com/100x100/eb00eb/fff');
}
And if you think you can use some javascript code then you should be able to change the src of the img tag as below
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Remove underline from links in TextView - Android
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33
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Make a link open a new window (not tab) [duplicate]
...pure HTML you can't influence this - every modern browser (= the user) has complete control over this behavior because it has been misused a lot in the past...
HTML option
You can open a new window (HTML4) or a new browsing context (HTML5). Browsing context in modern browsers is mostly "new tab"...
NSString: isEqual vs. isEqualToString
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isEqual: compares a string to an object, and will return NO if the object is not a string. isEqualToString: is faster if you know both objects are strings, as the documentation states:
Special Considerations
When you know bot...
What does the “static” modifier after “import” mean?
...w months
after you wrote it) will not know
which class a static member comes
from. Importing all of the static
members from a class can be
particularly harmful to readability;
if you need only one or two members,
import them individually. Used
appropriately, static import can make
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indexOf method in an object array?
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387
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How is the Linux kernel tested ?
...the Linux kernel developers test their code locally and after they have it committed? Do they use some kind of unit testing, build automation? test plans?
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