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When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]

...ate engine by default, you are always free to choose our own. As far as I know Flask comes in handy for writing APIs endpoints (RESTful services). "Twisted is an event-driven networking engine written in python". This is a high-performance engine. The main reason for its speed is something called a...
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Clone private git repo with dockerfile

...ey was password protected which was causing the problem, a working file is now listed below (for help of future googlers) FROM ubuntu MAINTAINER Luke Crooks "luke@pumalo.org" # Update aptitude with new repo RUN apt-get update # Install software RUN apt-get install -y git # Make ssh dir RUN mkdi...
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Why does the arrow (->) operator in C exist?

...o an int value positioned at byte-offset 2 in the continuous memory block known as c, even though type struct T had no field named b. The compiler would not care about the actual type of c at all. All it cared about is that c was an lvalue: some sort of writable memory block. Now note that if you ...
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How does the Java 'for each' loop work?

... This answer is now a blog post and was created from two related answers that I've written: here and here. It also includes a generically useful class for comparing the speed of two functions (at the bottom). – aliteral...
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Why does jQuery or a DOM method such as getElementById not find the element?

... It's now 2020 — is "Placing scripts at the bottom" still "considered a best practice" ? I (nowdays) put all my resources in the <head> and use defer on scripts (I don't have to support bad-old incompatible browsers) ...
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What's the point of having pointers in Go?

I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference. ...
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Haskell: Lists, Arrays, Vectors, Sequences

..." (putting objects at the end) than any pure linked list data structure I know of, although this is not a persistant data structure so less friendly than Haskell's lists. The third problem with lists is that they have poor space efficiency. Bunches of extra pointers push up your storage (by a cons...
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Can you explain the concept of streams?

...ata, just like water continuously flows in a river. You don't necessarily know where the data is coming from, and most often you don't need to; be it from a file, a socket, or any other source, it doesn't (shouldn't) really matter. This is very similar to receiving a stream of water, whereby you don...
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How to find time complexity of an algorithm

...y 2. For this reason, we drop all but the largest terms for large N. So, now we have gone from 2N + 2 to 2N. Traditionally, we are only interested in performance up to constant factors. This means that we don't really care if there is some constant multiple of difference in performance when N i...
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Java: Class.this

...sing classes (JLS 8.1), so a.this in your example is not defined. I don't know if this constraint is true for bytecode. Maybe not. – aioobe Apr 29 '15 at 6:33 add a comment ...