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Regex how to match an optional character
...{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2})
And, since in most regex dialects, \d is the same as [0-9]:
^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(\d{4})(\d{2})(\d{2})
But: do you really need 11 separate capturing groups? And if ...
Static member initialization in a class template
...: doesn't it violate the one definition rule ?
– Alexandre C.
Jul 12 '10 at 15:49
7
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How do I test for an empty string in a Bash case statement?
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The case statement uses globs, not regexes, and insists on exact matches.
So the empty string is written, as usual, as "" or '':
case "$command" in
"") do_empty ;;
something) do_something ;;
prefix*) do_prefix ;;
*) do_other ;;
esac
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how to know if the request is ajax in asp.net mvc?
...der added to indicate it is AJAX. The header to check is X-Requested-With, and the value will be XMLHttpRequest when it is an AJAX call.
Note that AJAX requests are normal GETs or POSTs, so unless you (or your AJAX library like jQuery) are adding an additional header in the request, there is no way...
Jquery .on() submit event
...r" ), also I add another one form.remember using AJAX.
So, I want it to handle submit event something like:
3 Answers
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$watch'ing for data changes in an Angular directive
...ntroduced $watchCollection
Shallow watches the properties of an object and fires whenever any of the properties change (for arrays, this implies watching the array items; for object maps, this implies watching the properties)
scope.$watchCollection('val.children', function(newValue, oldValue) ...
How to scale a UIImageView proportionally?
I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width.
17 Answer...
HTML span align center not working?
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A div is a block element, and will span the width of the container unless a width is set. A span is an inline element, and will have the width of the text inside it. Currently, you are trying to set align as a CSS property. Align is an attribute.
<...
Set scroll position
...ll an element instead of the full window, elements don't have the scrollTo and scrollBy methods. You should:
var el = document.getElementById("myel"); // Or whatever method to get the element
// To set the scroll
el.scrollTop = 0;
el.scrollLeft = 0;
// To increment the scroll
el.scrollTop += 100;...
How to change background color in android app
I want to be able to change the background color to white in my android app in the simplest way possible.
19 Answers
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