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Require either of two arguments using argparse
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HEy @ijoseph, this answer is prett old by now. I'm not sure what the answer was any more. It probably has been removed by now. Sorry for that!
– jlengrand
Apr 13 '18 at 9:13
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TypeScript function overloading
... named implementation appropriately based on what it was passed. How it is now there is a rift where you could pass the compiler but your implementation of the type sniffing could be incorrect.
– Ezekiel Victor
Feb 26 '16 at 0:37
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How do I ignore files in a directory in Git?
...he .gitignore file. When one of the two mentioned git commands is executed now, the directory will be (unexpectedly) lost.
mkdir test
cd test
git init
echo "/localdata/*" >.gitignore
git add .gitignore
git commit -m "Add .gitignore."
mkdir localdata
echo "Important data" >localdata/important...
Handling an empty UITableView. Print a friendly message
...bleView.emptyDataSetDelegate = self
tableView.tableFooterView = UIView()
Now all you have to do to show the emptystate is:
//Add title for empty dataset
func titleForEmptyDataSet(scrollView: UIScrollView!) -> NSAttributedString! {
let str = "Welcome"
let attrs = [NSFontAttributeName: ...
What's the difference between a 302 and a 307 redirect?
...e real question is should we still be handling HTTP 1.0 user agents at all now?
– ewanm89
Apr 9 '14 at 12:57
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wkhtmltopdf: cannot connect to X server
...Extract it and move it to /usr/local/bin/
Rename it to wkhtmltopdf so that now you have an executable at /usr/local/bin/wkhtmltopdf
Set permissions: sudo chmod a+x /usr/local/bin/wkhtmltopdf
Install required support packages.
sudo apt-get install openssl build-essential xorg libssl-dev
Check to s...
Variable declaration placement in C
...n C, all variables had to be declared at the beginning of the function. I know that in C99, the rules are the same as in C++, but what are the variable declaration placement rules for C89/ANSI C?
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Java maximum memory on Windows XP
...n't rebase those libraries, so they
are still a problem for us.
We know how to make chunked heaps, but
there would be some overhead to using
them. We have more requests for faster
storage management than we do for
larger heaps in the 32-bit JVM. If you
really want large heaps, switc...
Two-way encryption: I need to store passwords that can be retrieved
...ime to show you different instances will still properly decrypt the data.
Now, how does it work/why use it over another solution:
Keys
The keys are not directly used. Instead, the key is stretched by a standard PBKDF2 derivation.
The key used for encryption is unique for every encrypted block ...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...rsion number in the main part of the code. What I have been doing up until now is to link the version number in a String XML file to the manifest (@string/Version). What I would like to do is to do it the other way around, link a string XML variable to the version in the manifest. The reason? I'd li...