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Views vs Components in Ember.js

...e of thumb, if you need in your view access to it's surrounding controller etc. use a Ember.View, but if you want to isolated the view and pass in only the information that it needs to work making it context-agnostic and much more reusable, use a Ember.Component. Hope it helps. Update With the publi...
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What do the terms “CPU bound” and “I/O bound” mean?

...cked by I/O, or input/output, such as reading or writing to disk, network, etc. In general, when optimizing computer programs, one tries to seek out the bottleneck and eliminate it. Knowing that your program is CPU bound helps, so that one doesn't unnecessarily optimize something else. [And by "b...
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Choice between vector::resize() and vector::reserve()

...their original memory. "want to avoid a couple of allocations" and copies etc – Tony Delroy Dec 28 '11 at 8:46 19 ...
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What's the difference between => , ()=>, and Unit=>

..."), for some examples). It can be passed as argument, stored in variables, etc. A "block of code" is a syntactical delimitation of statements -- it isn't a value, it can't be passed around, or anything like that. – Daniel C. Sobral Sep 4 '13 at 13:06 ...
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Weak and strong property setter attributes in Objective-C

...or a particular file. If its on you cannot use retain release autorelease etc... Instead you use strong weak for properties or __strong __weak for variables (defaults to __strong). Strong is the equivalent to retain, however ARC will manage the release for you. The only time you would want to u...
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Window vs Page vs UserControl for WPF navigation?

...ate from one screen to another like User management screen to Order Screen etc In the main Window we can use Frame control for navigation like below XAML <Frame Name="mainWinFrame" NavigationUIVisibility="Hidden" ButtonBase.Click="mainWinFrame_Click"> </Frame> C# privat...
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What does “program to interfaces, not implementations” mean?

...downside of the first approach? There is the overhead of finding a company etc. Unless you are a rental car company, it may not be worth the effort. share | improve this answer | ...
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Can scrapy be used to scrape dynamic content from websites that are using AJAX?

...in-kazan.ru. All messages are loaded with an AJAX request. My goal is to fetch these messages with all their attributes (author, date, ...): When I analyze the source code of the page I can't see all these messages because the web page uses AJAX technology. But I can with Firebug from Mozilla Fi...
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What is recursion and when should I use it?

...lude traversing hierarchies, e.g. website crawlers, directory comparisons, etc. Conclusion In practical terms, recursion makes the most sense whenever you need iterative branching. share ...
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Why is it bad style to `rescue Exception => e` in Ruby?

... - because the airbag didn't inflate, you're probably hurt (getting fired, etc). But wait! There's more reasons why you might want to use rescue Exception => e! Let's say you're that car, and you want to make sure the airbag inflates if the car is exceeding its safe stopping momentum. begin ...