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Python: Checking if a 'Dictionary' is empty doesn't seem to work
I am trying to check if a dictionary is empty but it doesn't behave properly. It just skips it and displays ONLINE without anything except of display the message. Any ideas why ?
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Remove a symlink to a directory
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# this works:
rm foo
# versus this, which doesn't:
rm foo/
Basically, you need to tell it to delete a file, not delete a directory. I believe the difference between rm and rmdir exists because of differences in the way the C library treats each.
At any rate, the f...
What's the strangest corner case you've seen in C# or .NET? [closed]
...64-bit JIT compiler applies tail call optimisation, whereas the 32-bit JIT does not.
Unfortunately I haven't got a 64-bit machine to hand to verify this, but the method does meet all the conditions for tail-call optimisation. If anybody does have one I'd be interested to see if it's true.
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Adding a new entry to the PATH variable in ZSH
... this line to .zshrc:
export PATH=/home/david/pear/bin:$PATH
EDIT: This does work, but ony's answer below is better, as it takes advantage of the structured interface ZSH provides for variables like $PATH. This approach is standard for bash, but as far as I know, there is no reason to use it when...
Why XML-Serializable class need a parameterless constructor
...alization when the user intends
to immediately populate all fields. It
does not create an uninitialized
string, since creating an empty
instance of an immutable type serves
no purpose.
I have my own serialization engine, but I don't intend making it use FormatterServices; I quite like kn...
What is the “double tilde” (~~) operator in JavaScript? [duplicate]
I'm seeing this in some code, and I have no idea what it does:
4 Answers
4
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Ruby - elegantly convert variable to an array if not an array already
... answered Mar 16 '14 at 4:59
eladoelado
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Accessing Object Memory Address
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Note to self: The guarantee does not apply to multiprocessing
– Rufus
Feb 9 '17 at 3:33
1
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What's the difference between “git reset” and “git checkout”?
...t master, 'develop' itself will now point to the same commit that 'master' does.
On the other hand, if we instead run git checkout master, 'develop' will not move, HEAD itself will. HEAD will now point to 'master'.
So, in both cases we're moving HEAD to point to commit A, but how we do so...
Indenting code in Sublime text 2?
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You can find it in Edit → Line → Reindent, but it does not have a shortcut by default.
You can add a shortcut by going to the menu Preferences → Keybindings → User, then add there:
{ "keys": ["f12"], "command": "reindent", "args": {"single_line": false} }
(example o...