It's no longer active, but Oboe.js did great stuff for a decade+ in this field! It has some very nice APIs for consuming. https://github.com/jimhigson/oboe.js/

It's no longer active, but Oboe.js did great stuff for a decade+ in this field! It has some very nice APIs for consuming. https://github.com/jimhigson/oboe.js/ https://github.com/jimhigson/oboe.js/ It's less about incrementally parsing objects, and more about picking paths and shapes out from a feed. If you're doing something like array/newline delimited json, it's a great tool for reading things out as they arrive. Also great for example for feed parsing.