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Callback to a Fragment from a DialogFragment

.... Coupling the child to that interface might come back to haunt you if you start using the child more widely later. Using the "built-in" onActivityResult() interface requires no additional coupling, so it allows you a little more flexibility. – Dalbergia Aug 14...
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Should I use the datetime or timestamp data type in MySQL?

.../31 9:00AM no matters if that day i'm working in New York or Paris. I will start to work at 8:00AM of local time of place i'll be that day. – yucer Dec 17 '13 at 10:40 ...
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What is a “web service” in plain English?

...eone else want to use some of that data. They could download your page and start filtering out all the "noise" to get the data they wanted, but most websites are not built in a way where data is 100% certain to be placed in the same spot for all elements, so in addition to being cumbersome it also b...
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How can you determine a point is between two other points on a line segment?

... fixed that by another cmp trick, but this code starts to smell ;-) – vincent Nov 30 '08 at 20:20 add a comment  |  ...
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How to sum a variable by group

...es are ordered and the ID column is 1:nrow(df), is it possible to keep the starting position of each category after aggregating? So the ID column would end up as, for example, 1, 3, 4, 7 after collapsing with aggregate. In my case I like aggregate because it works over many columns automatically. ...
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How to delay the .keyup() handler until the user stops typing?

...t internally handles an individual timer, in each execution the timer is restarted with the time delay provided, if multiple executions occur before this time passes, the timer will just reset and start again. When the timer finally ends, the callback function is executed, passing the original conte...
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How can I force clients to refresh JavaScript files?

...the process of making fairly rapid changes, although obviously as usage is starting to ramp up, we will be slowing down this process. That being said, one issue we are running into is that after we push out an update with new JavaScript files, the client browsers still use the cached version of the...
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BaseException.message deprecated in Python 2.6

...are supposed to inherit our custom exception classes from Exception which (starting from Python 2.5) inherits from BaseException. The background is described in detail in PEP 352. class BaseException(object): """Superclass representing the base of the exception hierarchy. Provides an 'args'...
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Convert to/from DateTime and Time in Ruby

...Unfortunately this only really works when dealing with local times. If you start with a DateTime or Time with a different timezone, the parse function will convert into local timezone. You basically lose the original timezone. – Bernard Aug 18 '10 at 14:20 ...
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JUnit vs TestNG [closed]

...ight not think all of TestNGs features above might not be needed, once you start to understand the flexibility bring to your tests, you'll wonder how you coped with JUnit. (disclaimer - I've not used JUnit 4.x at all, so am unable to really comment on advances or new features there). ...