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Delete files older than 3 months old in a directory using .NET
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Good point. I wrote my own ForEach extension method for IEnumerable<T> so long ago, I sometimes forget it isn't built in.
– Joel Mueller
Feb 8 '10 at 22:33
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unable to install pg gem
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On Centos 7 yum install postgresql-devel solved my error related to pg_config for installing the 'pg' .gem. By the way I opted to use the just released PostgreSQL 10
– Arthur
Nov 5 '17 at 2:42
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Send JSON data via POST (ajax) and receive json response from Controller (MVC)
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My problem solved using JSON.stringify(), can anyone little explain why we need this while if someone sending json object?
– Muhammad Zeshan Ghafoor
Jan 11 '17 at 6:26
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How to check if function exists in JavaScript?
My code is
31 Answers
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How do I get an empty array of any size in python?
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That bit me hard on my very first Python project, @dappawit. Heed this warning.
– The Nate
Oct 24 '16 at 9:09
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How to create a file in Ruby
...two definitely do not work but the second two do. Not sure how I convinced my self that I had tried them. Sorry for wasting everyone's time.
In case this helps anyone else, this can occur when you are trying to make a new file in a directory that does not exist.
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Determine the number of NA values in a column
I want to count the number of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following:
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When to Redis? When to MongoDB? [closed]
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If you ask me, my personal choice is Redis for most requirements.
Lastly, I hope by now you have seen http://antirez.com/post/MongoDB-and-Redis.html
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Convert int to string?
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string myString = myInt.ToString();
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HttpUtility does not exist in the current context
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My solution Explorer tree does not contain "Reference"
– Paul Gorbas
Apr 13 '18 at 19:03
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