not use import statement outside a module code example
Example 1: SyntaxError: Cannot use import statement outside a module
Node.js >= v13
Save the file with .mjs extension, &
Add { "type": "module" } in the nearest package.json.
(run npm init to create package.json)
Example 2: Uncaught SyntaxError: Cannot use import statement outside a module
1. Inside scripts file import the following module
import {a} from "./module.js";
alert(a);
2. add that script inside file you want to use it
<script type="module" src="PATH_TO_FILE"></script>