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What are free monads?
...if X is a Y with some extra stuff P, then a "free X" is a a way of getting from a Y to an X without gaining anything extra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an operation (you can think of addition) and some identity (like zero).
So
class Mono...
Can you connect to Amazon ElastiСache Redis outside of Amazon?
I'm able to connect to an ElastiCache Redis instance in a VPC from EC2 instances . But I would like to know if there is a way to connect to an ElastiCache Redis node outside of Amazon EC2 instances, such as from my local dev setup or VPS instances provided by other vendors.
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Difference between getAttribute() and getParameter()
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getParameter() returns http request parameters. Those passed from the client to the server. For example http://example.com/servlet?parameter=1. Can only return String
getAttribute() is for server-side usage only - you fill the request with attributes that you can use within the same re...
How to send email from Terminal?
I know there are ways to send email from terminal in Linux/MacOS, but I can't seem to find proper documentation on how to do that.
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Thou shalt not inherit from std::vector
...ult to confess, but I do have a strong temptation at the moment to inherit from std::vector .
13 Answers
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How do I run a batch script from within a batch script?
How do I call another batch script from within a batch script?
8 Answers
8
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Read values into a shell variable from a pipe
I am trying to get bash to process data from stdin that gets piped into, but no luck. What I mean is none of the following work:
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Struggling with NSNumberFormatter in Swift for currency
...l as transactions. I need to allow the user to enter both pence and pounds from separate text fields and they need to be formatted together with currency symbols. I have this working fine at the moment but would like to make it localised as currently it only works with GBP. I have been struggling to...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
...e(d2)
d4.update(d3)
Previous SO question that both of these answers came from is here.
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Get properties and values from unknown object
From the world of PHP I have decided to give C# a go. I've had a search but can't seem to find the answer of how to do the equivalent to this.
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