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val-mutable versus var-immutable in Scala

... Pretty common question, this one. The hard thing is finding the duplicates. You should strive for referential transparency. What that means is that, if I have an expression "e", I could make a val x = e, and replace e with x. This ...
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HTML for the Pause symbol in audio and video control

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postgresql: INSERT INTO … (SELECT * …)

... edited May 23 '17 at 12:26 Community♦ 111 silver badge answered May 21 '11 at 17:53 Grzegorz Szpetkowsk...
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How to check if all elements of a list matches a condition?

...t answer here is to use all(), which is the builtin for this situation. We combine this with a generator expression to produce the result you want cleanly and efficiently. For example: >>> items = [[1, 2, 0], [1, 2, 0], [1, 2, 0]] >>> all(flag == 0 for (_, _, flag) in items) True ...
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Are parallel calls to send/recv on the same socket valid?

...n the case of multiple sends, the second will likely block until the first completes. You probably won't notice this much, as a send completes once its put its data into the socket buffer. If you're using SOCK_STREAM sockets, trying to do things a parallel is less likely to be useful as send/recv ...
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How to extract the hostname portion of a URL in JavaScript

... suppose that you have a page with this address: http://sub.domain.com/virtualPath/page.htm. use the following in page code to achive those results: window.location.host : you'll get sub.domain.com:8080 or sub.domain.com:80 window.location.hostname : you'll get sub.domain.com window.locati...
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How do you create nested dict in Python?

...nnerkey': 'value'}} You can populate that however you want. I would recommend in your code something like the following: d = {} # can use defaultdict(dict) instead for row in file_map: # derive row key from something # when using defaultdict, we can skip the next step creating a dic...
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Regular expression search replace in Sublime Text 2

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Directive isolate scope with ng-repeat scope in AngularJS

... Okay, through a lot of the comments above, I have discovered the confusion. First, a couple of points of clarification: ngRepeat does not affect your chosen isolate scope the parameters passed into ngRepeat for use on your directive's attributes do u...
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Difference between class and type

...ype, and classes are a kind of a type. More info here: http://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html share | improve this answer | follow | ...