More than a coder, more than a designer.

My name is PuiMan Cheui, a.k.a Aleen, and living in Guangzhou, Guangdong, China mainland. My major post has focused on front-end development with around 7 YEARS of experience since 2015. The current primary task in the open-source world is to build up my note, PersonalWiki, progressively during my spare time with GitBook. At the same time, I maintain some GitBook tutorial plugins like gitbook-treeview, gitbook-footer, gitbook-comments (for integrating comments with GitLab and GitHub), etc.

Recently I focused on complicated features of WYSIWYG editors like format painting, table cells merging, splitting, more modern designed UI / UXs, Chinese formatted counter styled lists, resizable tables, and so on.

Other contributions: git, mdn, webpack, core-js, vexflow, etc.

Some things you may want to know about me:

• 🔭 I'm currently working on @Coremail (a.k.a @Mailtech, 2017 - Now). Previously on:
  • @Soundtooth (2015 - 2017)
  • @Monsoon (2014 - Now)
• 🏸 I'm currently learning how to play badminton, play violin, and swim better.
• 🕹 Technical Stacks: JavaScript(TypeScript) + Babel + UglifyJS, Webpack, Gulp / Grunt, Less(Sass) + PostCss, core-js(shim), Handlebars, Karma / Jest, Puppeteer / Selenium, Eslint, etc.
• 🎮 Framework Experiences: React, Vue, Ionic + Angular 1.x, aralejs, etc.
• 😈 Compatibility Skill: DOWN to IE8! I have collected some confusing problems.
• 📫 Email me by [email protected].
• ... (waiting for your exploring)

Recently, I have brought out some TC39 proposals like proposal-object-pick-or-omit and proposal-promise-uncaught. It should be my pleasure to invite you to focus on and discuss it to help step more in stage 1 in the committee.

During the process of becoming an advanced JavasScript developer, I also hope to explore my graphic techniques in the future like WebGL, GLSL. To step out, I have written a small project, named "How to draw in JavaScript", where we can use JavaScript to simulate drawing with given images.

As a coder, I also hope to be more than a designer at the same time, like creating "Mingtocat", or "Kaleidoscope".

Finally, appreciate your viewing of my profile! You can follow me if my works are of interest.

Any questions? Feel free to contact me via:

At the same time, feel free to offer me a swimming chance by sponsoring me: