lazy-evaluation Archives

Extract a dplyr tbl column as a vector

Is there a more succinct way to get one column of a dplyr tbl as a vector, from a tbl with database back-end ...

May 25, 2022
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What does a lazy val do?

I noticed that Scala provide lazy vals. But I don’t get what they do. scala> val x = 15 x: Int = 15 ...

May 20, 2022
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What does the exclamation mark mean in a Haskell declaration?

I came across the following definition as I try to learn Haskell using a real project to drive it. I don’t understand what ...

May 17, 2022
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When should I use Lazy?

I found this article about Lazy: Laziness in C# 4.0 – Lazy What is the best practice to have best performance using Lazy ...

May 11, 2022
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Read a file one line at a time in node.js?

I am trying to read a large file one line at a time. I found a question on Quora that dealt with the ...

April 28, 2022
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