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How to set a bitmap from resource
...s, is required. It is normally obtainable in any Context (and subclasses like Activity).
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How to print an exception in Python?
How can I print the error/exception in my except: block?
8 Answers
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Why is the minimalist, example Haskell quicksort not a “true” quicksort?
Haskell's website introduces a very attractive 5-line quicksort function , as seen below.
11 Answers
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How do you unit test a Celery task?
... testing Celery within Django but doesn't explain how to test a Celery task if you are not using Django. How do you do this?
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Rails: How to change the title of a page?
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In your views do something like this:
<% content_for :title, "Title for specific page" %>
<!-- or -->
<h1><%= content_for(:title, "Title for specific page") %></h1>
The following goes in the layout file:
<head>
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How to deal with persistent storage (e.g. databases) in Docker
How do people deal with persistent storage for your Docker containers?
14 Answers
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When should I make explicit use of the `this` pointer?
...t;int> b;
b.foo();
}
If you omit this->, the compiler does not know how to treat i, since it may or may not exist in all instantiations of A. In order to tell it that i is indeed a member of A<T>, for any T, the this-> prefix is required.
Note: it is possible to still omit this...
How can I recognize touch events using jQuery in Safari for iPad? Is it possible?
...hes[0];
alert(touch.pageX + " - " + touch.pageY);
}, false);
This works in most WebKit based browsers (incl. Android).
Here is some good documentation.
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What does the “+” (plus sign) CSS selector mean?
...would apply the style to every paragraph in the page.
This will only work on IE7 or above. In IE6, the style will not be applied to any elements. This also goes for the > combinator, by the way.
See also Microsoft's overview for CSS compatibility in Internet Explorer.
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Profiling Vim startup time
... collected plugins over the years. I’m a bit fed up with how long Vim takes to start now, so I’d like to profile its startup and see which of the many plugins I have are responsible.
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