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webpack.prod.js
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webpack.prod.js
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const { merge } = require("webpack-merge");
const common = require("./webpack.common.js");
const TerserPlugin = require("terser-webpack-plugin");
module.exports = merge(common, {
mode: "production",
devtool: false,
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
terserOptions: {
parse: {
// We want terser to parse ecma 8 code. However, we don't want it
// to apply minification steps that turns valid ecma 5 code
// into invalid ecma 5 code. This is why the `compress` and `output`
ecma: 8,
},
compress: {
ecma: 5,
inline: 2,
},
mangle: {
// Find work around for Safari 10+
safari10: true,
},
output: {
ecma: 5,
comments: false,
},
},
// Use multi-process parallel running to improve the build speed
parallel: true,
// Enable file caching
cache: true,
}),
],
},
});