@babel/plugin-syntax-top-level-await

NOTE: This plugin is included in @babel/preset-env, in ES2022.Syntax only​This plugin only enables parsing of this feature. Babel doesn't support transforming top-level await, but you can use Rollup's experimentalTopLevelAwait or webpack@5's experiments.topLevelAwait options.

提示

You can safely remove this plugin from your Babel config if using @babel/core 7.15.0 or above.

JavaScript

const val = await promise;

export { val };

Installation​

• npm
• Yarn
• pnpm

pnpm add --save-dev @babel/plugin-syntax-top-level-await

Usage​

With a configuration file (Recommended)​

babel.config.json

{
  "plugins": ["@babel/plugin-syntax-top-level-await"]
}

Via CLI​

Shell

babel --plugins @babel/plugin-syntax-top-level-await script.js

Via Node API​

JavaScript

require("@babel/core").transformSync(code, {
  plugins: ["@babel/plugin-syntax-top-level-await"],
});