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Using vagrant to run virtual machines with desktop environment

...o |vb| vb.gui = true end Boot the VM and observe the new display window. Now you just need to install and start xfce4. Use vagrant ssh and: sudo apt-get install xfce4 sudo startxfce4& If this is the first time you're running this Ubuntu environment, you'll need to run the following command ...
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“Keep Me Logged In” - the best approach

...cookie for this purpose, you're doing something wrong. There. I said it. Now we can move on to the actual answer. What's wrong with hashing user data, you ask? Well, it comes down to exposure surface and security through obscurity. Imagine for a second that you're an attacker. You see a cryptog...
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Android XML Percent Symbol

... Packaging Tool (aapt) has become very strict in its latest release and is now used for all Android versions. The aapt-error you're getting is generated because it no longer allows non-positional format specifiers. Here are a few ideas how you can include the %-symbol in your resource strings. If ...
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How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat

... Thanks, now everything works fine :) I think this answer is the best, because the code is easily readable. – Ernestas Gruodis Aug 26 '13 at 16:40 ...
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

...s (also rows). In other words, Car → Wheel is a 1-to-many relationship. Now, let's say you need to iterate through all the cars, and for each one, print out a list of the wheels. The naive O/R implementation would do the following: SELECT * FROM Cars; And then for each Car: SELECT * FROM Wheel W...
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What is VanillaJS?

... FYI: Vanilla JS is now 0 bytes, 25 bytes compressed. – Trisped Jun 19 '15 at 22:09 8 ...
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What “things” can be injected into others in Angular.js?

...{ $scope.onClick = function() { greeting('Ford Prefect'); }; }); Now here's the trick. factory, service, and value are all just shortcuts to define various parts of a provider--that is, they provide a means of defining a provider without having to type all that stuff out. For example, you ...
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Is it possible to make abstract classes in Python?

...class is already established as abstract shouldn't the compiler/interpret know that all the methods are from the abstract class in question? – Charlie Parker Mar 17 '14 at 3:30 35 ...
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What techniques can be used to define a class in JavaScript, and what are their trade-offs?

...refer to use OOP in large scale projects like the one I'm working on right now. I need to create several classes in JavaScript but, if I'm not mistaken, there are at least a couple of ways to go about doing that. What would be the syntax and why would it be done in that way? ...
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Is there anything like inotify on Windows?

...I was wonderying myself how kernel people solve these situations. Good to know they do this, makes one more confident in design and implementation. – n611x007 Oct 29 '13 at 10:50 ...