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What does a lazy val do?

... printed when it's initialized in same way (I have taken x as var intentionally here - to explain when y gets initialized). Next when y is called, it's initialized as well as value of last 'x' is taken into consideration but not the old one. Hope this helps. ...
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“Single-page” JS websites and SEO

... the server act as an API (and nothing more) and letting the client handle all of the HTML generation stuff. The problem with this "pattern" is the lack of search engine support. I can think of two solutions: ...
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What is the exact meaning of IFS=$'\n'?

... Normally bash doesn't interpret escape sequences in string literals. So if you write \n or "\n" or '\n', that's not a linebreak - it's the letter n (in the first case) or a backslash followed by the letter n (in the other two cas...
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What is the difference between self-types and trait subclasses?

...is extended, then you're required to mix-in an A. When a concrete class finally extends/mixes-in these traits, some class/trait must implement A. Consider the following examples: scala> trait User { def name: String } defined trait User scala> trait Tweeter { | user: User => ...
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AngularJS - Any way for $http.post to send request parameters instead of JSON?

... return data; } return $.param(data); } }); That way all calls to $http.post will automatically transform the body to the same param format used by the jQuery $.post call. Note you may also want to set the Content-Type header per call or globally like this: $httpProvider.defa...
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In Python, how do I split a string and keep the separators?

...of pattern. If capturing parentheses are used in pattern, then the text of all groups in the pattern are also returned as part of the resulting list." – Vinay Sajip Jan 25 '10 at 23:54 ...
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Assert equals between 2 Lists in Junit

...t(actual, is(not(expected))); } If you have a recent version of Junit installed with hamcrest, just add these imports: import static org.junit.Assert.*; import static org.hamcrest.CoreMatchers.*; http://junit.org/junit4/javadoc/latest/org/junit/Assert.html#assertThat(T, org.hamcrest.Matcher) http:...
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Why doesn't c++ have &&= or ||= for booleans?

... all the more reason to have &&= in my opinion. =P – Kache Mar 21 '10 at 20:19 4 ...
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Viewing a Deleted File in Git

... my working copy. I want to look at the contents of that file, but not actually restore it. How can I do this? 3 Answers ...
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print call stack in C or C++

Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called? What I have in mind is something like this: ...