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Where can I set environment variables that crontab will use?
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This answer should get more upvotes and simply be the selected answer: Very simple and elegant and avoids countless kludges that would require jumping all over the system.
– Giacomo1968
Dec 14 '18 at 4:42
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R cannot be resolved - Android error
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Myself also. And when I selected the SDK manager, lo and behold, the build tools shows up auto-checked for installing, with a note that it wasn't installed! What gives???
– David at HotspotOffice
Jun 3 '13 at 2...
How to use pull to refresh in Swift?
...ring(string: "Pull to refresh")
refreshControl.addTarget(self, action: #selector(self.refresh(_:)), for: .valueChanged)
tableView.addSubview(refreshControl) // not required when using UITableViewController
}
@objc func refresh(_ sender: AnyObject) {
// Code to refresh table view
}
At s...
asynchronous vs non-blocking
...ing socket would have blocked. You have to use a separate function such as select or poll to find out when is a good time to retry.
But asynchronous sockets (as supported by Windows sockets), or the asynchronous IO pattern used in .NET, are more convenient. You call a method to start an operation, ...
How to enable file sharing for my app?
...s computer, iTunes displays a File Sharing section in the Apps tab of the selected
device.
The user can add files to this directory or move files to the desktop.
Apps that support file sharing should be able to recognize when files
have been added to the Documents directory and respond...
How do I pre-populate a jQuery Datepicker textbox with today's date?
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$(".selector").datepicker().datepicker("setDate", new Date()); will work and doesn't make jQuery search the DOM twice.
– abc123
Aug 1 '13 at 20:36
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Cannot find or open the PDB file in Visual Studio C++ 2010
...e debug symbols for. Go to Tools->Options->Debugging->Symbols and select checkbox "Microsoft Symbol Servers", Visual Studio will download PDBs automatically. Or you may just ignore these warnings if you don't need to see correct call stack in these modules.
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Detect and exclude outliers in Pandas data frame
...se` depending on if it is a value below the threshold.
constrains = df.select_dtypes(include=[np.number]) \
.apply(lambda x: np.abs(stats.zscore(x)) < z_thresh, reduce=False) \
.all(axis=1)
# Drop (inplace) values set to be rejected
df.drop(df.index[~constrains], inpla...
How to merge two sorted arrays into a sorted array? [closed]
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+1, Thanks for sharing. One question: why did you select the type of array and type of variable 'temp', long?
– Hengameh
Jul 13 '15 at 3:49
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How should you build your database from source control?
... I'm assuming "look up lists" means the data that is used to populuate <select> boxes? That may not always be possible, since that data might be modified by users (in some way) on production. Keeping backups makes sense in this case. You also suggest recreating the database from scratch as ...