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How to read the RGB value of a given pixel in Python?
...mage object which returns a pixel access object which you can manipulate like an array:
from PIL import Image
im = Image.open('dead_parrot.jpg') # Can be many different formats.
pix = im.load()
print im.size # Get the width and hight of the image for iterating over
print pix[x,y] # Get the RGBA ...
Detect all changes to a (immediately) using JQuery
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This jQuery code catches immediate changes to any element, and should work across all browsers:
$('.myElements').each(function() {
var elem = $(this);
// Save current value of element
elem.data('oldVal', elem.val());
// Look for changes in the value
elem.bind("propertychange cha...
MySQL INNER JOIN select only one row from second table
..., may have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help
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endsWith in JavaScript
How can I check if a string ends with a particular character in JavaScript?
31 Answers
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What is the difference between include and require in Ruby?
...oes in most other programming
languages: run another file. It also
tracks what you've required in the
past and won't require the same file
twice. To run another file without
this added functionality, you can use
the load method.
The include method takes all the
methods from anothe...
.Net picking wrong referenced assembly version
...nto a problem with the version of one of my referenced assemblies (a telerik DLL as it happens).
22 Answers
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Iterate two Lists or Arrays with one ForEach statement in C#
This just for general knowledge:
11 Answers
11
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Is it safe to delete a NULL pointer?
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delete performs the check anyway, so checking it on your side adds overhead and looks uglier. A very good practice is setting the pointer to NULL after delete (helps avoiding double deletion and other similar memory corruption problems).
I'd also l...
Cast Double to Integer in Java
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A Double is not an Integer, so the cast won't work. Note the difference between the Double class and the double primitive. Also note that a Double is a Number, so it has the method intValue, which you can use to get the value as a primitive int.
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What is the reason behind “non-static method cannot be referenced from a static context”? [duplicate
The very common beginner mistake is when you try to use a class property "statically" without making an instance of that class. It leaves you with the mentioned error message:
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