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Why use argparse rather than optparse?
...recated, and will hopefully go away in the future.
argparse is better for all the reasons listed on its original page (https://code.google.com/archive/p/argparse/):
handling positional arguments
supporting sub-commands
allowing alternative option prefixes like + and /
handling zero-or-more and on...
Dynamically adding a form to a Django formset with Ajax
I want to automatically add new forms to a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form (which is part of the formset) to the page.
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Reverse Range in Swift
...o:0,by:-1) { print(i) } // 5 4 3 2 1
Update For latest Swift 2
First of all, protocol extensions change how reverse is used:
for i in (1...5).reverse() { print(i) } // 5 4 3 2 1
Stride has been reworked in Xcode 7 Beta 6. The new usage is:
for i in 0.stride(to: -8, by: -2) { print(i) } // 0 -2...
Add default value of datetime field in SQL Server to a timestamp
... that. You can name the constraint whatever you like, Management Studio usually names them DF_TableName.
– TheQ
Feb 3 '11 at 16:03
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List comprehension vs map
...ing map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other?
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Convert a series of parent-child relationships into a hierarchical tree?
...o '</ul>';
}
}
You'll only save 8 iterations on a dataset as small as this but on bigger sets it could make a difference.
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UIButton remove all target-actions
...multiple target-action-forControlEvents: to a UIButton. I'd like to remove all of these in one go without deallocating anything. I will then set new targets.
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Learn C first before learning Objective-C [closed]
...blem entirely in Obj-C, sometimes resulting in a very clumsy solutions. Usually I then replace some Obj-C code with pure C code (after all you can mix them as much as you like, the content of an Obj-C method can be entirely, pure C code). Without any intention to insult any Obj-C programmer, there a...
Primary key/foreign Key naming convention [closed]
...egarding the naming convention for Primary and Foreign Keys. There's basically two schools of thought in our group:
13 Ans...
Rails layouts per action?
...th this is that you cannot access objects such as current_user to conditionally determine the layout
– Andrew K
Dec 14 '14 at 5:25
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