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How to prevent buttons from submitting forms

..., should not f#$'n have a default type of submit. It's just plain idiotic, and a huge mistake in the spec. I use buttons in forms all the time, and even if it were an edge case (which it isn't), it'd still make sense to have the default type be submit. – dudewad ...
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java.lang.RuntimeException: Unable to instantiate activity ComponentInfo

I was trying to run a sample code While launching the application in the android 1.5 emulator , I got these errors.... Any one have some hint..? ...
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How do I install Python OpenCV through Conda?

...to import cv2.cv (am I missing something obvious?) – Andy Hayden Aug 13 '15 at 5:03 2 This works ...
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Better way to revert to a previous SVN revision of a file?

I accidentally committed too many files to an SVN repository and changed some things I didn't mean to. (Sigh.) In order to revert them to their prior state, the best I could come up with was ...
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Visualizing branch topology in Git

I'm playing with Git in isolation on my own machine, and I find it difficult to maintain a mental model of all my branches and commits. I know I can do a git log to see the commit history from where I am, but is there a way to see the entire branch topography, something like these ASCII maps that ...
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?

... what if I return a local list from a function and use that in the calling function. That is def fn_1(): lst = [] lst.append(1) lst.append(2) return lst and def fn_2(): print(fn_1()) Will the order be same ALWAYS irrespective of how many times or where ever I use fn_1() ?...
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How do I set up IntelliJ IDEA for Android applications?

How do I set up IntelliJ IDEA for Android applications? 7 Answers 7 ...
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Setting PayPal return URL and making it auto return?

... Log in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypal.com The My Account Overview page appears. Click the gear icon top right. The Profile Summary page appears. Click the My Selling Preferences link in the left column. Under the Selling Online section, ...
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Big-oh vs big-theta [duplicate]

... Big-O is an upper bound. Big-Theta is a tight bound, i.e. upper and lower bound. When people only worry about what's the worst that can happen, big-O is sufficient; i.e. it says that "it can't get much worse than this". The tighter the bound the better, of course, but a tight bound isn't...
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Stack vs heap allocation of structs in Go, and how they relate to garbage collection

I'm new to Go and I'm experiencing a bit of congitive dissonance between C-style stack-based programming where automatic variables live on the stack and allocated memory lives on the heap and and Python-style stack-based-programming where the only thing that lives on the stack are references/pointer...