JavaScript函数导入不起作用 [英] JavaScript function Import not working
问题描述
我正在尝试从单独的.js文件导入函数.当我声明导入命令时，页面未执行代码.但是，当我删除导入命令并执行一个简单的警报("Hello")时，该事件就会在页面上弹出.
I am trying to import a function from a separate .js file. When I declare the import command the page is not executing the code. But when I delete the import command and execute a simple alert('Hello'), that thing is popping up on the page.
项目结构
--Todo-app
---- js
------ two.js
------ main.js
---- index.html
PROJECT STRUCTURE
--Todo-app
----js
------two.js
------main.js
----index.html
Index.html
Index.html
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script src="js/main.js"></script>
</body>
</html>
two.js
export function one() {
return 1 + 1;
}
main.js
import { one } from 'two';
alert(one());
推荐答案
目前，任何浏览器中均未实现import和export语句.您需要使用 Babel
The import and export statements is not implemented in any browsers natively at this time. You need to use a transpiler like Babel
但是chrome和firefox可以解析此语句Uncaught SyntaxError: Unexpected token import，但不支持模块加载.
But chrome and firefox can parse this statements Uncaught SyntaxError: Unexpected token import but not support the module loading.
有关更多详细信息，请参见MDN 引用声明导入
See MDN for more détails Reference Statements import
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