Node.js: how to reload module

Question

I am new to NodeJS so probably I am doing some mistakes.

I have written a bunch of code in an external file called myapp. I start NodeJS for windows and from the interpr

Answer 1

There are some answers here as suggested in the comments.

However they are not REPL friendly, and might even use extra modules.

Here is a one line solution that you can paste in your REPL, inspired by the discussion on the other question:

function nocache(module) {require("fs").watchFile(require("path").resolve(module), () => {delete require.cache[require.resolve(module)]})}

The function will delete your module from the cache each time the file changes. To use it, just paste it in the REPL, call uncache("d:/myapp.js"), then use require normally.

> function nocache(module) {require("fs").watchFile(require("path").resolve(module), () => {delete require.cache[require.resolve(module)]})}
> nocache("d:/myapp.js");
> var myapp = require("d:/myapp.js");
......
> myapp = require("d:/myapp.js");
....