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What's the difference between [ and [[ in Bash? [duplicate]
I looked at bash man page and the [[ says it uses Conditional Expressions. Then I looked at Conditional Expressions section and it lists the same operators as test (and [ ).
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Disable hover effects on mobile browsers
I'm writing a Web site that's meant to be used from both desktops and tablets. When it's being visited from a desktop, I want the clickable areas of the screen to light up with :hover effects (different background color, etc.) With a tablet, there's no mouse, so I don't want any hover effects.
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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
In the following method definitions, what does the * and ** do for param2 ?
22 Answers
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Why is the order in dictionaries and sets arbitrary?
I don't understand how looping over a dictionary or set in python is done by 'arbitrary' order.
6 Answers
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What is ViewModel in MVC?
I am new to ASP.NET MVC. I have a problem with understanding the purpose of a ViewModel.
14 Answers
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How does JavaFX compare to WPF? [closed]
...ill probably be subject to change as the platform is still fairly immature and is being actively developed.
Graphics
Like WPF, JavaFX uses a retained graphics rendering system. The user interface comprises a scene graph which is composed of 'nodes' which can be thought of as conceptually similar t...
support FragmentPagerAdapter holds reference to old fragments
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You are running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem, and are trying to use those references independently of the ViewPager. As Seraph says, you do have guarantees that a fragment has been instantiated/add...
What is Node.js' Connect, Express and “middleware”?
...ddleware. That's why Connect describes itself as a "middleware framework," and is often analogized to Ruby's Rack.
Express does to Connect what Connect does to the http module: It offers a createServer method that extends Connect's Server prototype. So all of the functionality of Connect is there, p...
How do I retrieve an HTML element's actual width and height?
... the browser's display (viewport). To do so, I need to calculate the width and height of the <div> element.
14 Ans...
Why does Maven have such a bad rep? [closed]
...Maven is bad. I have been using some features of Maven for a few years now and the most important benefit in my view is the dependency management.
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