Diep's Blog

Go common pitfall #1: slice appending

Go's slice is simple to use, but there are some easy to make mistakes if you are not aware of its internals. For example, with following program: package main import "fmt" func main() { healthyFoods := []string{"orange", "apple", "lettuce"} myFoods := healthyFoods[0:2] myFoods = append(myFoods, "bacon") fmt.Println(healthyFoods) } You

vim

Update your vimrc to Vim9 script

Vim 9 has been released, and one of the new features is Vim9 script. The purpose of Vim9 script, beside improve performance, is making Vimscript feels less weird, compare to other commonly used programming languages. In this blog post, we will learn how to convert existing vimrc file to use

fly.io

Host a Ghost blog on Fly.io for free

On this post, I’ll show you how to host a Ghost instance on Fly.io for free. If you don’t know yet, Fly.io is an application distribution platform that makes it super easy to deploy and scaling your application on multiple regions. Their free plan includes 3

docker

Dockerfile COPY vs. ADD

What is the difference between COPY and ADD in Dockerfile and when to use either of them.