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What is the use of making constructor private in a class?
... This is what Sun did for the String class, and a reasonable chunk of the API that should not be extended.
– BobMcGee
Jan 15 '10 at 16:08
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Android: Storing username and password?
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With the new (Android 6.0) fingerprint hardware and API you can do it as in this github sample application.
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Changing every value in a hash in Ruby
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There is a new 'Rails way' method for this task :)
http://api.rubyonrails.org/classes/Hash.html#method-i-transform_values
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follo...
Is there a label/goto in Python?
...ython, at least in CPython and PyPy, and not only by misusing the debugger API as that other guy did. You have to mess with the bytecode though.
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how to set radio option checked onload with jQuery
... thing. For explanation, see the "Attributes vs. Properties" section here: api.jquery.com/prop. Also there's no need for the extra filter, you can just combine the 2 selectors e.g. $("input[name=gender][value=Male]").prop("checked", true);
– jackocnr
Apr 2 '14 ...
Appending HTML string to the DOM
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@Šime Working with the DOM API always feels like a hack :P Would you prefer to unserialise the string without innerHTML?
– alex
Sep 6 '11 at 22:55
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Conditional Variable vs Semaphore
...ary they are all district objects, all implemented using platform specific APIs. Certainly a semaphore will unblock the number of times signalled, condition variable might be be signalled multiple times but unblock only once. This is why the wair takes a mutex as a parameter.
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How to convert a Java 8 Stream to an Array?
...ator) method with an array constructor reference. This is suggested in the API documentation for the method.
String[] stringArray = stringStream.toArray(String[]::new);
What it does is find a method that takes in an integer (the size) as argument, and returns a String[], which is exactly what (on...
Best way to detect when a user leaves a web page?
...Web: it will not work for every user. developer.mozilla.org/en-US/docs/Web/API/Window/event
– Robin Neal
Jan 20 '17 at 13:37
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IPN vs PDT in Paypal
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The APIs for PDT and IPN are similar. The main difference is when you receive the notification. For that reason I would recommend implementing both.
With PDT you get the notification instantly and can do any additional proces...