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Map over object preserving keys
...h Underscore
Underscore provides a function _.mapObject to map the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapValues to map the values and pre...
How to find the php.ini file used by the command line?
...d to enable pdo_mysql in my EasyPhp environment, so I went to php.ini file and uncommented the following line:
14 Answers
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NameValueCollection vs Dictionary [duplicate]
...e .ToLookup(o => [key], o => [value(s)]) if you have duplicate keys, and it should (?) behave like a readonly dictionary.
– drzaus
Mar 10 '15 at 14:31
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How to use `subprocess` command with pipes
...or various reasons, not least of which is security. Instead, create the ps and grep processes separately, and pipe the output from one into the other, like so:
ps = subprocess.Popen(('ps', '-A'), stdout=subprocess.PIPE)
output = subprocess.check_output(('grep', 'process_name'), stdin=ps.stdout)
ps....
How can I send mail from an iPhone application
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On iOS 3.0 and later you should use the MFMailComposeViewController class, and the MFMailComposeViewControllerDelegate protocol, that is tucked away in the MessageUI framework.
First add the framework and import:
#import <MessageUI...
Why am I getting “undefined reference to sqrt” error even though I include math.h header? [duplicate
I'm very new to C and I have this code:
5 Answers
5
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App can't be opened because it is from an unidentified developer
I installed Mac OS X Mavericks (10.9) yesterday and since then I am not able to start my Eclipse. I am attaching a screenshot of the message I see.
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remove all variables except functions
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You can use the following command to clear out ALL variables. Be careful because it you cannot get your variables back.
rm(list=ls(all=TRUE))
share
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i...
Application not picking up .css file (flask/python)
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I have read multiple threads and none of them fixed the issue that people are describing and I have experienced too.
I have even tried to move away from conda and use pip, to upgrade to python 3.7, i have tried all coding proposed and none of them fixed...
how to check the dtype of a column in python pandas
I need to use different functions to treat numeric columns and string columns. What I am doing now is really dumb:
6 Answer...