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Throwing cats out of windows
Imagine you're in a tall building with a cat. The cat can survive a fall out of a low story window, but will die if thrown from a high floor. How can you figure out the longest drop that the cat can survive, using the least number of attempts?
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How to empty a list?
It seems so "dirty" emptying a list in this way:
7 Answers
7
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When is it better to use an NSSet over an NSArray?
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When the order of the items in the collection is not important, sets offer better performance for finding items in the collection.
The reason is that a set uses hash values to find items (like a dictionary) while an array has to iterate over its ...
Reset Entity-Framework Migrations
I've mucked up my migrations, I used IgnoreChanges on the initial migration, but now I want to delete all my migrations and start with an initial migration with all of the logic.
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What does the “map” method do in Ruby?
... |n| n * n } #=> [1, 4, 9]
Array and Range are enumerable types. map with a block returns an Array. map! mutates the original array.
Where is this helpful, and what is the difference between map! and each? Here is an example:
names = ['danil', 'edmund']
# here we map one array to another, c...
What's the difference between a continuation and a callback?
...wsing all over the web in search of enlightenment about continuations, and it's mind boggling how the simplest of explanations can so utterly confound a JavaScript programmer like myself. This is especially true when most articles explain continuations with code in Scheme or use monads.
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How to configure Mac OS X term so that git has color? [closed]
I've seen a Mac OS X git demo online in which it's configured to have multiple colors.
6 Answers
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What are enums and why are they useful?
Today I was browsing through some questions on this site and I found a mention of an enum being used in singleton pattern about purported thread safety benefits to such solution.
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How to run Django's test database only in memory?
My Django unit tests take a long time to run, so I'm looking for ways to speed that up. I'm considering installing an SSD , but I know that has its downsides too. Of course, there are things I could do with my code, but I'm looking for a structural fix. Even running a single test is slow since the ...
How to disable anchor “jump” when loading a page?
...sh) {
setTimeout(function() {
window.scrollTo(0, 0);
}, 1);
}
Edit: tested and works in Firefox, IE & Chrome on Windows.
Edit 2: move setTimeout() inside if block, props @vsync.
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