vue打包时new webpack.optimize.UglifyJsPlugin webpack配置文件报错

Question

Answer 1

This error is happening because the current uglify-js dependency that is in webpack.optimize.UglifyJsPlugin() does not yet support ES6 JavaScript syntax.

Because of this, you have a few options:

• transpile your JavaScript to a syntax that uglify will support: This can be done by using babel-preset-env and setting the property uglify: true in your .babelrc file.

• Use an es6 aware minifier such as butternut (which I believe has a webpack plugin), closure compiler, or babili (which can be used via a babel plugin added to your .babelrc file.