The same line of code but in different languages.
- Variables (PHP, JavaScript, Python).
- Collections - Arrays/Lists (PHP, JavaScript, Python).
- Conditionals (PHP, JavaScript, Python).
- Loops (PHP, JavaScript, Python).
- Functions (PHP, JavaScript, Python).
- Classes (PHP, JavaScript, Python).
I use it only for didactic purposes, it does not cover all the characteristics of each language.
You can find here my personal scripts, including the popular install-opencv.sh.