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Rails: convert UTC DateTime to another time zone
...
I'm using simple_form in Rails 4 and I just added the input field as
<%= f.input :time_zone, :as => :time_zone %>
with the migration
class AddTimeZoneColumnToTextmessage < ActiveRecord::Migration
def change
add_colum...
Java code To convert byte to Hexadecimal
...= new StringBuilder();
for (byte b : bytes) {
sb.append(String.format("%02X ", b));
}
System.out.println(sb.toString());
// prints "FF 00 01 02 03 "
See also
java.util.Formatter syntax
%[flags][width]conversion
Flag '0' - The result will be zero-padded
Width 2
Conver...
Does Java have buffer overflows?
...mple You might write an XML parser and someone could provide you with a malformed (or legitimate but uncommon) request which, owing to the design of your parser overwrites previously validated data with some payload that would cause your application to behave badly.
This latter form is less likely ...
Func vs. Action vs. Predicate [duplicate]
... kind'a like how simple you have explained it. func - returns action - performs (method)
– Juvil
Jan 10 '13 at 5:09
...
How does C compute sin() and other math functions?
... system-dependent. Therefore you can find the implementation, for each platform, somewhere in the appropriate subdirectory of sysdeps.
One directory includes an implementation in C, contributed by IBM. Since October 2011, this is the code that actually runs when you call sin() on a typical x86-64 L...
How to implement if-else statement in XSLT?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
Disabling user selection in UIWebView
...omString:jsCallBack];
Disable the Copy / Paste user menu:
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(copy:) ||
action == @selector(paste:)||
action == @selector(cut:))
{
return _copyCutAndPasteEnabled;
}
retur...
How to sort a Ruby Hash by number value?
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$window.unbind('scroll', onScroll);
}
};
...
Perform debounce in React.js
How do you perform debounce in React.js?
34 Answers
34
...
How to get UTC time in Python?
... The concept of a so called naive datetime object (i.e., no timezone information is set) does serve a purpose: I want my alarm clock to ring at 06:00:00 every day no matter where in the world I am. Also it allows for "virtual clocks" in say computer games: It is now 5 pm in my fantasy world. For...