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What is Weak Head Normal Form?

What does Weak Head Normal Form (WHNF) mean? What does Head Normal form (HNF) and Normal Form (NF) mean? 6 Answers ...
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How to loop through a directory recursively to delete files with certain extensions

I need to loop through a directory recursively and remove all files with extension .pdf and .doc . I'm managing to loop through a directory recursively but not managing to filter the files with the above mentioned file extensions. ...
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promise already under evaluation: recursive default argument reference or earlier problems?

Here is my R code. The functions are defined as: 4 Answers 4 ...
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Are 2^n and n*2^n in the same time complexity?

Resources I've found on time complexity are unclear about when it is okay to ignore terms in a time complexity equation, specifically with non-polynomial examples. ...
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Good examples of Not a Functor/Functor/Applicative/Monad?

While explaining to someone what a type class X is I struggle to find good examples of data structures which are exactly X. ...
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Big O, how do you calculate/approximate it?

Most people with a degree in CS will certainly know what Big O stands for . It helps us to measure how well an algorithm scales. ...
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Differences between action and actionListener

What is the difference between action and actionListener , and when should I use action versus actionListener ? 4 Ans...
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How to push different local Git branches to Heroku/master

Heroku has a policy of ignoring all branches but 'master'. 11 Answers 11 ...
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Saving enum from select in Rails 4.1

I am using the enums in Rails 4.1 to keep track of colors of wine. 8 Answers 8 ...
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Mapping over values in a python dictionary

Given a dictionary { k1: v1, k2: v2 ... } I want to get { k1: f(v1), k2: f(v2) ... } provided I pass a function f . 7 ...