canvas

Android 5.0 Map is not defined

This would be a nice little feature to have, Excel users are using this a lot.

Add a terminal UI for Luckysheet, probably using blessed library: https://github.com/chjj/blessed (if your API is in nodeJS; works, but frozen), or https://github.com/jquast/blessed (if your API can be bound to Python; works, and is actively maintained), or use mighty old ncurses (in C; for the bold...). This would of course use the existing Lu

https://html.spec.whatwg.org/multipage/custom-elements.html#custom-elements-face-example

get checked() { return this.getAttribute('checked'); }

this line should be

  get checked() { return this.hasAttribute('checked'); }