Ben Chuanlong Du's Blog

It is never too late to learn.

Understand DSL in Kotlin

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Kotlin DSL in under an hour by Anton Arhipov

https://www.youtube.com/watch?v=0DJqr4FZ6f0

Kotlin tutorial : How to use Function Literal with Receiver in Kotlin | Kotlin 101

https://www …

Tips on ssh-keygen

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Use the following command to generate new RSA keys without prompt questions.

ssh-keygen -q -y -t rsa -N '' -f ~/.ssh/id_rsa

`ifelse` on Pandas Series

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Series.apply + Lambda Function

DataFrame.apply + Lambda Function

axis=1: apply the lambda function on each row

List Comprehension

numpy.where

numpy.where is vectorized ifelse.