ES6 imports doesn't work
Question
b.js :
const x = 1;
export {x};
a.js :
import {x} from 'b'; // <<-- ERROR
console.log(x);
index.html :
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script src="a.js"></script>
</body>
</html>
Error:
Uncaught SyntaxError: Unexpected token {
I'm using WebStorm and running the project in Chrome in Win7.
Update:
I changed index.html content to:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script src="a.js" type="module"></script>
</body>
</html>
Error:
Uncaught TypeError: Failed to resolve module specifier "b". Relative references must start with either "/", "./", or "../".
It seems that b.js is not loaded.
1 answers
solution1
6 ACCPTED 2018-08-07 06:47:35
To use ES6 modules, you have to load the script using type="module" - this ensures that browsers that do not understand ES6 modules won't choke on it
Next, to import, you must specify path and full filename of the imported file
See comments in code
b.js
const x = 1;
export {x};
a.js
// specify the path and full filename below
import {x} from './b.js'; // <<-- NO ERROR NOW
console.log(x);
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<!-- add type="module" -->
<script src="a.js" type="module"></script>
</body>
</html>
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