Package Exports
- tree-shake
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (tree-shake) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
Tree-shake
Inspired by agadoo lib
Is your project 100% tree-shakeable?
With treeshake, you can find out which files and code lines that are not tree-shakeable.
Usage
Simply run npx treeshake
in your project root. Make sure you have your entry point defined in package.json
under either "module"
or "main"
.
Upon running, you'll get notification whether your code is 100% tree-shakeable or not. If not, it will tell which file(s) are causing/ affected by side-effects and the codes that caused it.
********** reading files **********
tree88shakey
TREESHAKEtRe eSha
kETREESHaKetreeshAKE
TreeShakEY o0o tREeSHAKE
Es6 /T r eesHakeY
\/// /Thanks
\//////
|||||
|||||
|||||
.....//||||\....
Awesome! Your code is 100% tree-shakeable!
or
********** reading files **********
Unshaken files:
/path/to/your/file.js
/another/path/to/your/file.js
********** reading codes **********
Unshaken codes:
console.log("Side-effects");
********** Finished Reading **********
How do I make my project tree-shakeable?
- Use ES6's
import
andexport
- As much as possible, not have side-effects
More resources on JS modules
- Dead code elimination vs tree shaking
- Anatomy of JS module systems
- JS module system
- RollupJS
- ESM
- ESM usage
- ESM cartoon
- Why you should use ESM
- Does node run all code inside required modules?
Please feel free to ask any question/ submit PR!