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How to detect a textbox's content has changed
... textbox content that do not involve any keypress. For example selecting a range of text then right-click-cut. Or dragging it. Or dropping text from another app into the textbox. Or changing a word via the browser's spell-check. Or...
So if you must detect every change, you have to poll for it. You...
Is char signed or unsigned by default?
...ype char:
The implementation shall define char to have the same range, representation, and behavior as either signed char or unsigned char.
and in a footnote:
CHAR_MIN, defined in <limits.h>, will have one of the values 0 or SCHAR_MIN, and this can be used to distinguish the t...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
...(pk)]
multinomial_coeff_denom= 0
prod_probs = 0
for x in range(0,len(obs)): # loop through state counts in each observation
multinomial_coeff_denom = multinomial_coeff_denom + math.log(math.factorial(obs[x]))
prod_probs = prod_probs + obs[x]*math.log(probs[x])
...
Which HTML5 reset CSS do you use and why? [closed]
...ves useful defaults, unlike many CSS resets.
Normalizes styles for a wide range of HTML elements.
Corrects bugs and common browser inconsistencies.
Improves usability with subtle improvements.
Explains what code does using detailed comments.
normalize.css
...
Is there a query language for JSON?
...language, mainly intended for the command-line but with bindings to a wide range of programming languages (Java, node.js, php, ...) and even available in the browser via jq-web.
Here are some illustrations based on the original question, which gave this JSON as an example:
[{"x": 2, "y": 0}}, {"x...
Are C++ enums signed or unsigned?
... For example:
enum Fruit
{
Apple = 0,
Banana,
Pineapple,
Orange,
Kumquat
};
enum Fruit fruitVariable = Banana; // Okay, Banana is a member of the Fruit enum
fruitVariable = 1; // Error, 1 is not a member of enum Fruit even though it has the same value as banana.
...
Set icon for Android application
...
If you intend on your application being available on a large range of devices, you should place your application icon into the different res/drawable... folders provided. In each of these folders, you should include a 48dp sized icon:
drawable-ldpi (120 dpi, Low density screen) - 36p...
How do I use Wget to download all images into a single folder, from a URL?
...ollow the below:
If there are 20 images to download from web all at once, range starts from 0 to 19.
wget http://joindiaspora.com/img{0..19}.jpg
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How can I iterate over files in a given directory?
...ed in arbitrary order. No tilde expansion is done, but *, ?, and character ranges expressed with [] will be correctly matched.
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CSV in Python adding an extra carriage return, on Windows
...v.writer(sys.stdout, lineterminator='\n')
doc.writerow('abc')
doc.writerow(range(3))
That example will work on Python 2 and Python 3 and won't produce the unwanted newline characters. Note, however, that it may produce undesirable newlines (omitting the LF character on Unix operating systems).
In...