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Can someone explain the traverse function in Haskell?
I am trying and failing to grok the traverse function from Data.Traversable . I am unable to see its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
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Using the “final” modifier whenever applicable in Java [closed]
...ticing the word itself and will simply think, that-thing-will-never-change-from-this-point-on (you can take it from me ;-)
I think it's good practice. I am not using it all the time, but when I can and it makes sense to label something final I'll do it.
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How to execute PHP code from the command line?
...lot more fun.
Anyway, the php command offers two switches to execute code from the command line:
-r <code> Run PHP <code> without using script tags <?..?>
-R <code> Run PHP <code> for every input line
You can use php's -r switch as such:
php -r 'echo ...
NPM doesn't install module dependencies
...re node_modules folder and re-installing worked for me. Learned this trick from the IT Crowd show!
rm -rf node_modules
npm install
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Git add all files modified, deleted, and untracked?
...pt on a server that was running git 1.5.2.5. git add -A was not working. From the script, no error message was reported. Only from the command line did I find that -A was not a legal option to add.
– Eponymous
Jan 16 '12 at 16:37
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Change column type from string to float in Pandas
...ataFrame or Series to have. It's very versatile in that you can try and go from one type to the any other.
Basic usage
Just pick a type: you can use a NumPy dtype (e.g. np.int16), some Python types (e.g. bool), or pandas-specific types (like the categorical dtype).
Call the method on the object you ...
Finding local IP addresses using Python's stdlib
...e IP address instead of a domain name -- it must be faster and independent from DNS availability. E.g. we can use 8.8.8.8 IP -- Google's public DNS server.
– wobmene
Apr 16 '12 at 12:27
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What is the difference between and ? [duplicate]
Both tags include the content from one page in another.
6 Answers
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Checkout subdirectories in Git?
...t repository with just mytheme and myplugins directories and symlink those from within the WordPress install.
MDCore wrote:
making a commit to, e.g., mytheme will increment the revision number for myplugin
Note that this is not a concern for git, if you do decide to put both directories in ...
How to add Options Menu to Fragment in Android
I am trying to add an item to the options menu from a group of fragments.
20 Answers
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