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How can I declare optional function parameters in Javascript? [duplicate]

... With ES6: This is now part of the language: function myFunc(a, b = 0) { // function body } Please keep in mind that ES6 checks the values against undefined and not against truthy-ness (so only real undefined values get the default value ...
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How do servlets work? Instantiation, sessions, shared variables and multithreading

...afety That said, your major concern is possibly thread safety. You should now know that servlets and filters are shared among all requests. That's the nice thing about Java, it's multithreaded and different threads (read: HTTP requests) can make use of the same instance. It would otherwise be too e...
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How to pretty print nested dictionaries?

... U know @Ken's conventional answer is much better than this. Json already handles everything and this can give errors such: UnicodeEncodeError: 'ascii' codec can't encode character u'\xf3' in position 50: ordinal not in range(128...
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CSS3 box-sizing: margin-box; Why not?

... is the whole point of this question). Even if such a value was introduced now, how do you propose patching/polyfilling/shimming it into existing browsers? – BoltClock♦ Sep 18 '16 at 9:25 ...
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What's wrong with Java Date & Time API? [closed]

...lus 2 hours around the time of the second world war. While this bug is now fixed, if at some point in the future a country chose to introduce a daylight savings time gain of plus three hours in summer, then the Calendar class would again be broken. The current Java SE API also suffe...
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How do I compare strings in Java?

...most always want to use Objects.equals(). In the rare situation where you know you're dealing with interned strings, you can use ==. From JLS 3.10.5. String Literals: Moreover, a string literal always refers to the same instance of class String. This is because string literals - or, more genera...
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How to maintain a Unique List in Java?

... Now I am confused, which one shall I use? I just need to have maintain a list of unique strings. So basically even when an existing string is added it should actually get added. – user1804287 ...
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What's a good Java, curses-like, library for terminal applications? [closed]

... Java Curses has now gotten some recent attention, and a new release in 2012. – Nate C-K Apr 17 '12 at 19:44 1 ...
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What exactly is an HTTP Entity?

... in the latest HTTP 1.1 specifications. Looks like it's been deprecated. Now we can just stick with "header fields" and "message body". – Hawkeye Parker Oct 13 '14 at 7:13 ...
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Optimizing away a “while(1);” in C++0x

...theory is required to prove termination, in the latter case, we need to know something about the possible values of j to do so. Wrap-around for unsigned integers may complicate some of this reasoning further.) This issue seems to apply to almost all loop restructuring transformations, inc...