如何从文件名变量导入javascript？

Question

Is it possible to import javascript from a filename stored in a variable to be determined at runtime, something like below?

const mydir="./bobs_pictures.js"
import pictures from mydir;

Answer 1

You can achieve that using dynamic imports , which run asynchronously.

const importPromise = import(mydir);
importPromise.then((module) => {
  // do something
});

If you want to use it across a function / module, note that it must be an async function, and then you'll be able to use it in a regular way with await :

async () => {
  const mydir = "./bobs_pictures.js";
  const module = await import(mydir);
}

PS. please check browser compatibility. You might need to use an external tool in order to run this on older browsers.