JS

https://github.com/managervcf/vanilla-js-single-page-app/blob/master/views/pages/ItemShow.js https://medium.com/@davletovalmir/what-are-signals-in-js-lets-build-one-and-find-out-0bd917dc0f35

Profile Backend

go tool pprof -http=:8081 http://localhost:6060/debug/pprof/heap