Expected a rant, got a life-pro-tip. Enough for a good happy new year.

That said, we can abuse the same trick for any languages that treats `//` as comment.

List of some practical(?) languages: C/C++, Java, JavaScript, Rust, Swift, Kotlin, ObjC, D, F#, GLSL/HLSL, Groovy

Personally, among those languages, GLSL sounds most interesting. A single-GLSL graphics demo is always inspiring. (Something like https://www.shadertoy.com/ )

Also, let’s not forget that we can do something similar using block comment(`/* … */`). An example in C:

/*/../usr/bin/env gcc "$0" "$@"; ./a.out; rm -vf a.out; exit; */

#include <stdio.h>

int main() { printf("Hello World!\n"); return 0; }