问题描述
尝试缩小文件并直接在浏览器中运行。
我正在用口水和通心粉来做。问题出在我尝试使用异步/等待功能时。
package.json
{
"@babel/core": "^7.11.6","@babel/plugin-transform-async-to-generator": "^7.12.1","@babel/plugin-transform-runtime": "^7.12.1","@babel/preset-env": "^7.11.5","gulp": "^4.0.2","gulp-babel": "^8.0.0","gulp-concat": "^2.6.1",...
}
const i = async () => {
return await fetchAll();
};
Gulp / Babel配置
const BabelConfig = {
presets: ['@babel/env'],plugins: ['@babel/plugin-transform-async-to-generator']
};
const imports = ['./dev/**.*.js'];
return gulp.src(imports)
.pipe(babel(BabelConfig))
.pipe(concat('min.js'))
.pipe(gulp.dest(paths.dist.js));
这只是抛出“未定义regeneratorRuntime”。
所以我尝试添加“ @ babel / plugin-transform-runtime”。
Gulp / Babel配置
const BabelConfig = {
presets: ['@babel/env'],plugins: ['@babel/plugin-transform-async-to-generator','@babel/plugin-transform-runtime']
};
const imports = ['./dev/**.*.js'];
return gulp.src(imports)
.pipe(babel(BabelConfig))
.pipe(concat('min.js'))
.pipe(gulp.dest(paths.dist.js));
但是现在我得到“需求未定义”。
有人对如何实现这一目标有任何线索吗?
解决方法
你快到了!我有一个类似的问题,问题是编译的 Gulp 代码包含大多数浏览器不支持的“require”语句。对我来说解决问题的是将 Webpack 添加到 Gulp 工作流以捆绑所有内容:
npm install --save-dev webpack webpack-cli webpack-stream
在你的 gulpfile.js 中:
const {src,dest,watch} = require('gulp');
const gulpBabel = require('gulp-babel');
const webpack = require('webpack-stream');
const compiler = require('webpack');
function myES6Transpiler() {
return src('./es6/utilities.js')
.pipe(gulpBabel({
presets: ['@babel/preset-env','babel-preset-minify'],plugins: ['@babel/transform-runtime','@babel/plugin-transform-async-to-generator'],}))
.pipe(webpack(require('./webpack.config-util.js'),compiler,function (err,stats) {
/* Use stats to do more things if needed */
}))
.pipe(dest('./js/'))
}
exports.myES6Transpiler = myES6Transpiler;
您还需要添加一个 Webpack 配置文件: webpack.config.js
module.exports = {
mode: "production",output: {
filename: "utilities.js"
}
}