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Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...its thing you should create a wrapper extending HttpServletResponseWrapper and buffer the output. This is to keep the output from going directly to the client but also allows you to protect if the servlet closes the stream, as per this excerpt (emphasis mine):
A filter that modifies a response ...
How to pause for specific amount of time? (Excel/VBA)
...se the Wait method:
Application.Wait Now + #0:00:01#
or (for Excel 2010 and later):
Application.Wait Now + #12:00:01 AM#
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Remove textarea inner shadow on Mobile Safari (iPhone)
... be careful when adding this property on input type checkbox and radio button selectors, because it hides the checkboxes and radio buttons ;)
– Zain Shaikh
Nov 2 '12 at 16:11
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Instantiating object of type parameter
...ngBuilder::new);
Alternatively, you can provide a Class<T> object, and then use reflection.
class MyClass<T> {
private final Constructor<? extends T> ctor;
private T field;
MyClass(Class<? extends T> impl) throws NoSuchMethodException {
this.ctor = impl.getCo...
php: determine where function was called from
...mine call-chains. If you want to "protect" those functions, check out OOP and protected methods.
– ircmaxell
Jun 2 '10 at 19:15
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Display number with leading zeros
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In Python 2 (and Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or sprintf (see docs).
For Python 3.+, the same behavior can also be achieved with format:
print("{:02d}".format(1))
For Python 3.6+ the same...
javascript: Clear all timeouts?
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It need not start at 1. The HTML5 spec says "Let handle be a user-agent-defined integer that is greater than zero that will identify the timeout to be set by this call." which leaves room for the handle to be any positive integer including non-consecutive and non-small integ...
Programmatically fire button click event?
...ally fire a button click event? I have a button placed there in an UIView, and in a particular scenario i want to click the button via code, not manually as a user. Is it possible in iOS development? Please provide your suggestions and guide me how to do that.
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How do I enable language extensions from within GHCi?
...HCi you'll actually get tab completion for available extensions, which is handy when you can't remember where they decided to use abbreviations ("MultiParam") or acronyms ("GADT") rather than spelling things out in full ("MonomorphismRestriction")...
– C. A. McCann
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Inject errors into already validated form?
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Form._errors can be treated like a standard dictionary. It's considered good form to use the ErrorList class, and to append errors to the existing list:
from django.forms.utils import ErrorList
errors = form._errors.setdefault("myfield", ErrorList())
errors.app...