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When is the finalize() method called in Java?
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In general it's best not to rely on finalize() to do any cleaning up etc.
According to the Javadoc (which it would be worth reading), it is:
Called by the garbage collector on an object when garbage collection determines that there are ...
Why do my list item bullets overlap floating elements
...low: hidden; to the container UL prevented the text in the individual line items from properly running around the floated block. This solution did the trick!
– jsdalton
Jan 15 '13 at 17:41
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Remove Fragment Page from ViewPager in Android
... Motivated by this answer, I found that the solution is to override the getItemId(int position) method of FragmentPagerAdapter to give a new unique ID whenever there has been a change in the expected position of a Fragment.
Source Code:
private class MyPagerAdapter extends FragmentPagerAdapter {
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How do I check if an object has a specific property in JavaScript?
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Seems like the best and shortest option
– user365314
Jan 5 at 14:43
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Removing multiple classes (jQuery)
...can do that!
jQuery
remove all class
$("element").removeClass();
OR
$("#item").removeAttr('class');
OR
$("#item").attr('class', '');
OR
$('#item')[0].className = '';
remove multi class
$("element").removeClass("class1 ... classn");
OR
$("element").removeClass("class1").removeClass("...").remove...
django template display item value or empty string
... if the variable evaluates to False, ie empty strings, empty lists etc
{{ item.somefield|default_if_none:"" }}
{{ item.somefield|default:"" }}
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append multiple values for one key in a dictionary [duplicate]
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You would be best off using collections.defaultdict (added in Python 2.5). This allows you to specify the default object type of a missing key (such as a list).
So instead of creating a key if it doesn't exist first and then appending to...
How to get a key in a JavaScript object by its value?
... Lol. This is not slow, it’s O(n) which is pretty much the best possible runtime.
– Ben Wainwright
Jan 10 at 18:36
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How to loop backwards in python? [duplicate]
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@Chinmay, why not use your answer as a way of showing best practices to the OP? No reason not to suggest using xrange.
– habnabit
Aug 13 '10 at 13:00
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JComboBox Selection Change Listener?
... doSomething();
}
});
@John Calsbeek rightly points out that addItemListener() will work, too. You may get 2 ItemEvents, though, one for the deselection of the previously selected item, and another for the selection of the new item. Just don't use both event types!
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