>Implement something like that without a framework and only plain js with dozens of fields having dependencies on each other, good luck :) I just implemented a

>Implement something like that without a framework and only plain js with dozens of fields having dependencies on each other, good luck :) I just implemented a complete spreadsheet solution inspired by Airtable (sticky header and columns, column resizing, virtual scrolling, row selection, cell selection, cell editing, a few cell types) in approximately 500 lines of vanilla JS. No virtual DOM, no reactive data library, no framework. Just direct DOM manipulations. It performs great and is pretty easy to understand and extend. For now, the reactive "field dependency" problem is just solved by re-rendering the entire spreadsheet when a cell is updated (really just re-rendering the visible rows, because of virtual scrolling). The state management is just not that complicated. I suggest this sort of project as an exercise if you've found yourself engrossed by this or that front-end framework. My go-to front-end frameworks for the past few years have been Mithril.js and Vue, but they really would have been a major hindrance in this case. I can't imagine Svelte or Solid.js or whatever being any better...