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How to pull a random record using Django's ORM?
...['count']
random_index = randint(0, count - 1)
return self.all()[random_index]
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UIRefreshControl without UITableViewController
...ng a UIRefreshControl instance as a subview to my UITableView. And it magically just works!
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
[refreshControl addTarget:self action:@selector(handleRefresh:) forControlEvents:UIControlEventValueChanged];
[self.myTableView addSubview:...
Prevent any form of page refresh using jQuery/Javascript
...system tries real hard to do #2, and the situation described above happens all the time. I usually have to wait until the server-side session expires before I can use the banking system again.
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Check if user is using IE
I am calling a function like the one below by click on divs with a certain class.
30 Answers
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Naming returned columns in Pandas aggregate function? [duplicate]
...er, this does not work with lambda functions, since they are anonymous and all return <lambda>, which causes a name collision:
>>> df.groupby('A').agg({'B': [lambda x: x.min(), lambda x: x.max]})
SpecificationError: Function names must be unique, found multiple named <lambda>
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How to check in Javascript if one element is contained within another
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You should use Node.contains, since it's now standard and available in all browsers.
https://developer.mozilla.org/en-US/docs/Web/API/Node.contains
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Why does ReSharper want to use 'var' for everything?
...irst and most frequent things I've noticed it suggesting is to change most/all my explicit declarations to var instead. For example:
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Calculating a directory's size using Python?
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This walks all sub-directories; summing file sizes:
import os
def get_size(start_path = '.'):
total_size = 0
for dirpath, dirnames, filenames in os.walk(start_path):
for f in filenames:
fp = os.path.join(di...
Is there a Java equivalent or methodology for the typedef keyword in C++?
...ith other ints, and it also makes code much more readable for humans. Basically, it's like an enum but without a limited set of values.
– weberc2
Jan 2 '15 at 23:43
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How to make exe files from a node.js app?
... this way. This setup can be automated with a batch file, vb script or installer.
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