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webpack.config.js
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webpack.config.js
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const path = require("path");
const glob = require("glob");
const srcDir = "./assets/scripts";
const entries = glob
.sync("**/*.js", {
ignore: "**/_*.js",
cwd: srcDir,
})
.map(function (key) {
// [ '**/*.js' , './src/**/*.js' ]という形式の配列になる
return [key, path.resolve(srcDir, key)];
});
// 配列→{key:value}の連想配列へ変換
const entryObj = Object.fromEntries(entries);
module.exports = {
mode: 'development',
entry: entryObj,
output: {
path: path.join(__dirname, "dist/assets/scripts"),
filename: "[name]",
},
module: {
rules: [
{
test: /\.js$/,
use: [
{
loader: 'babel-loader',
options: {
presets: [
"@babel/preset-env",
],
},
},
],
},
],
},
target: ["web", "es5"],
resolve: {
alias: {
'~': __dirname,
},
},
optimization: {
runtimeChunk: {
name: 'runtime.js',
},
splitChunks: {
chunks: 'all',
cacheGroups: {
default: false,
defaultVendors: false,
vendors: {
minSize: 0,
name: 'vendors.js',
test: /node_modules/,
}
}
}
}
};