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new DateTime() vs default(DateTime)
Is there a reason to choose one of these over the other?
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Easiest way to read from a URL into a string in .NET
Given a URL in a string:
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What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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Rails mapping array of hashes onto single hash
I have an array of hashes like so:
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Why can't you modify the data returned by a Mongoose Query (ex: findById)
When I try to change any part of the data returned by a Mongoose Query it has no effect.
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dplyr: “Error in n(): function should not be called directly”
I am attempting to reproduce one of the examples in the dplyr package but am getting this error message. I am expecting to see a new column n produced with the frequency of each combination. What am I missing? I triple checked that the package is loaded.
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Replacing some characters in a string with another character
I have a string like AxxBCyyyDEFzzLMN and I want to replace all the occurrences of x , y , and z with _ .
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Is there a python equivalent of Ruby's 'rvm'?
Q: Do we have anything functionally equivalent in Python to the Ruby version manager 'rvm' ?
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Using str_replace so that it only acts on the first match?
I want a version of str_replace() that only replaces the first occurrence of $search in the $subject . Is there an easy solution to this, or do I need a hacky solution?
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How can I extract all values from a dictionary in Python?
I have a dictionary d = {1:-0.3246, 2:-0.9185, 3:-3985, ...} .
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