top-level await

package.json

{
  "type": "module"
}

test.js

#!/usr/bin/env node

import { exec } from 'child_process';
import { promisify } from 'util';

const execAsync = promisify(exec);

const { stdout } = await execAsync('ls -l');

console.log(stdout);

Here is the output:

❯ node -v
v14.10.1

❯ ./test.js
total 16
-rw-r--r--  1 jason  staff   23 Sep 10 19:54 package.json
-rwxr-xr-x  1 jason  staff  197 Sep 10 19:56 test.js