• Node.js version >= 16.16.

yarn build

Remove dist directory before bundle files.

yarn build --clean

Run script with --playground flag will only build files needed for the website.

yarn build --playground

To print the bundled file sizes:

yarn build --print-size

Print the file size changes compare to the last released version:

yarn build --compare-size

To build specific file(s):

yarn build --file=esm/parser-babel.mjs

yarn build --file=standalone.js --file=parser-meriyah.js

To save bundled file to a different location, this flag can only use together with ONE --file flag

yarn build --file=parser-babel.js --save-as=babel-for-test.js

Visualize and analyze your esbuild bundle to see which modules are taking up space.

Available reporter formats:

• html Generate a HTML report file, saved next to the bundled file with .report.html suffix.
• text Generate a plain text report file, saved next to the bundled file with .report.txt suffix.
• stdout Log report information in console.

yarn build --report=all
yarn build --report=stdout --report=text --report=html

By default, the file minification is controlled by config.mjs and bundler.mjs, these flags are added to override that behavior.

These should only be used for debugging purposes, suggest to use them together with the --file flag.

Force minify files:

yarn build --file=index.js --minify

Disable minify files:

yarn build --file=parser-babel.js --no-minify