Bundle library as ESModule
yarn add -D esm-bundle
# use webpack as bundler
yarn add -D webpack
# use esbuild as bundler
yarn add -D esbuildesm react react-domesm-bundle design used for browser native esmodule. when you load some library
like lodash, it will send many requests. it not useful for develop, we
usually always focus on exports of library. so bundle this modules into one and
cache it forever could helpful for develop mode.
the config of bundler not setup for nodejs, so some module may not resolved, you will see the errors when you bundle a nodejs library.
when you bundle mulit libraries, it will set externals each other. like:
esm react react-domreact-dom depends on react, the react-dom bundle will set react as external
dependency that append a import statment on top of file.
custom bundler are not supports but easy to add.