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What is the difference between “px”, “dip”, “dp” and “sp”?
...lems with dp while everything works fine with dip
– DallaRosa
Jul 4 '11 at 6:07
255
One note abou...
Can “using” with more than one resource cause a resource leak?
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No.
The compiler will generate a separate finally block for each variable.
The spec (§8.13) says:
When a resource-acquisition takes the form of a
local-variable-declaration, it is possible to acquire multiple
resources of a given type. A using statement of the...
Disable button in jQuery
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Here is a small fiddle I created. Please let me what I'm doing wrong. jsfiddle.net/2Nfu4/3
– user2047817
Feb 28 '13 at 17:48
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Naming of enums in Java: Singular or Plural?
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In the same way that when you are defining a table name in a database or a class in Java you use singular for enums it's also the best option. Just see how you are going to use it.
Let's write an example:
public enum Day {
SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY,...
How can I quantify difference between two images?
...s on the first image to edges on the second.
Is there noise in the image?
All sensors pollute the image with some amount of noise. Low-cost sensors have more noise. You may wish to apply some noise reduction before you compare images. Blur is the most simple (but not the best) approach here.
What k...
Capture key press (or keydown) event on DIV element
...n't like it - the div focus border, set outline: none in the CSS.
See the table of keycodes for more keyCode possibilities.
All of the code assuming you use jQuery.
#
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What is the difference between Caching and Memoization?
...d like to add to the other great answers that memoization is also known as tabling. I think it is also important to know that term for those who learn what memoization and caching are.
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Is errno thread-safe?
...t errno; so my question is, is it safe to check errno value after some calls or use perror() in multi-threaded code. Is this a thread safe variable? If not, then whats the alternative ?
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Python memoising/deferred lookup property decorator
...nce, but they're a real bottleneck to calculate that first time and only really accessed for special cases. Hence they can also be cached after they've been retrieved from the database (this therefore fits the definition of memoisation where the input is simply "no input").
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“Pretty” Continuous Integration for Python
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Buildbot's waterfall page can be considerably prettified. Here's a nice example http://build.chromium.org/buildbot/waterfall/waterfall
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