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How does collections.defaultdict work?
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How do we know what is the default value for each type? 0 for int() and [] for list() are intuitive, but there can also be more complex or self-defined types.
– Sean
Mar 11 at 10:40
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C# Sort and OrderBy comparison
...practice, medium size of list (what's medium? ... let's say 1000 items for now) is most interesting. IMHO, sorting lists with 3 items is not very meaningful.
– Stefan Steinegger
Dec 2 '09 at 12:58
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What is the difference between `sorted(list)` vs `list.sort()`?
...ontent is still the same.
nums
[-3, 1, 4, 5, 7, 8, 9, 14]
nums.sort()
Now the original nums list is changed and looking at nums we see our original list has changed and is now sorted.
nums
[-3, 1, 2, 4, 5, 7, 8, 14]
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How to remove a field from params[:something]
...hash from scratch. This is why @Gaul said it is a bad idea. In Rails 5 you now have params.except method and also extract!
– rmcsharry
Sep 26 '16 at 21:05
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Java 7 language features with Android
...ng if anyone has tried using new Java 7 language features with Android?
I know that Android reads the bytecode that Java spits out and turns it to dex. So I guess my question is can it understand the bytecode of Java 7?
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What is the instanceof operator in JavaScript?
...t is. Consider a person / customer object. So person p = new person() p is now a person type and not a string type.
– JonH
Mar 15 '10 at 17:55
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How does origin/HEAD get set?
...otes/origin/HEAD.)
I think the above answers what you actually wanted to know, but to go ahead and answer the question you explicitly asked... origin/HEAD is set automatically when you clone a repository, and that's about it. Bizarrely, that it's not set by commands like git remote update - I belie...
When to use MongoDB or other document oriented database systems? [closed]
...os and vector-graphics don't share any common meta-information, etc. so I know, that MongoDB is perfect to store this unstructured data and keep it searchable.
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How do I enumerate the properties of a JavaScript object? [duplicate]
...you want
// you can get the value like this: myObject[propertyName]
}
Now, you will not get private variables this way because they are not available.
EDIT: @bitwiseplatypus is correct that unless you use the hasOwnProperty() method, you will get properties that are inherited - however, I do...
Generate all permutations of a list without adjacent equal elements
... cases, we find an optimal solution T that extends P', as needed.
Suppose now that P does end with y. Modify Q by moving the first occurrence of x to the front. In doing so, we introduce at most one defect (where x used to be) and eliminate one defect (the yy).
Generating all solutions
This is to...