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How to sum all the values in a dictionary?
... I don't know if you love python, if you love python 3, or if really are referring to a python 2
– Lucas Vazquez
Sep 23 '19 at 20:19
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How to recursively delete an entire directory with PowerShell 2.0?
What is the simplest way to forcefully delete a directory and all its subdirectories in PowerShell? I am using PowerShell V2 in Windows 7.
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“git rm --cached x” vs “git reset head -- x”?
...wing:
--soft
Does not touch the index file nor the working tree at all (but resets
the head to <commit>, just like all modes do). This leaves all your
changed files "Changes to be committed", as git status would put it.
--mixed
Resets the index but not the working tree...
How does Go update third-party packages?
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go get will install the package in the first directory listed at GOPATH (an environment variable which might contain a colon separated list of directories). You can use go get -u to update existing packages.
You can also use go get -u all t...
How can I determine the direction of a jQuery scroll event?
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An update on this: Be careful that some browsers, specially IE 11 on Windows 8, can fire a scroll event subpixel-based (smooth scrolling). But because it reports scrollTop as an integer, your previous scroll value could be the same as the current one.
– Rena...
Android - SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
I have the following layout (virtually empty):
18 Answers
18
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What is hashCode used for? Is it unique?
...r is based on the
System.Collections.IEqualityComparer interface.
Basically, hash codes exist to make hashtables possible.
Two equal objects are guaranteed to have equal hashcodes.
Two unequal objects are not guaranteed to have unequal hashcodes (that's called a collision).
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Exception handling in R [closed]
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All the links are broken.
– Toros91
May 2 '18 at 1:51
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Do you have to restart apache to make re-write rules in the .htaccess take effect?
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No:
Apache allows for decentralized management of configuration via special files placed inside the web tree. The special files are usually called .htaccess, but any name can be specified in the AccessFileName directive... Since .htacce...
How to escape text for regular expression in Java
... may lead to unexpected results, for example Pattern.quote("*.wav").replaceAll("*",".*") will result in \Q.*.wav\E and not .*\.wav, as you might expect.
– Matthias Ronge
Jan 16 '13 at 13:27
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