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Instance variables vs. class variables in Python
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answered Apr 26 '10 at 15:16
Alex MartelliAlex Martelli
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How can I pass selected row to commandLink inside dataTable or ui:repeat?
...the requirement.
If your servletcontainer supports a minimum of Servlet 3.0 / EL 2.2, then just pass it as an argument of action/listener method of UICommand component or AjaxBehavior tag. E.g.
<h:commandLink action="#{bean.insert(item.id)}" value="insert" />
In combination with:
public v...
Regular Expression for alphanumeric and underscores
...ng that contains only those characters (or an empty string), try
"^[a-zA-Z0-9_]*$"
This works for .NET regular expressions, and probably a lot of other languages as well.
Breaking it down:
^ : start of string
[ : beginning of character group
a-z : any lowercase letter
A-Z : any uppercase letter...
What is the difference between the $parse, $interpolate and $compile services?
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edited Jun 10 '14 at 11:21
ghickman
5,20366 gold badges3434 silver badges5050 bronze badges
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URL matrix parameters vs. query parameters
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Yaman Kumar
30733 silver badges1010 bronze badges
answered Apr 9 '11 at 3:25
Tim SylvesterTim Sylvester
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How do I use shell variables in an awk script?
...}' var="${variable}" file
Adding multiple variables:
awk '{print a,b,$0}' a="$var1" b="$var2" file
In this way we can also set different Field Separator FS for each file.
awk 'some code' FS=',' file1.txt FS=';' file2.ext
Variable after the code block will not work for the BEGIN block:
e...
Creating a blocking Queue in .NET?
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200
That looks very unsafe (very little synchronization); how about something like:
class SizeQueu...
What's the difference between BaseAdapter and ArrayAdapter?
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edited Mar 10 '15 at 14:21
answered May 28 '13 at 15:50
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Get loop counter/index using for…of syntax in JavaScript
...tion (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current browser versions:
for (const [i, value] of myArray.entries()) {
console.log('%d: %s', i, value);
}
For itera...
How can I save an image to the camera roll?
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240
You use the UIImageWriteToSavedPhotosAlbum() function.
//Let's say the image you want to save i...