gopherjsvet is GopherJS's cousin to go vet. It detects a number of suspicious constructs and errors specific to GopherJS. It is not a replacement for go vet, but a suppliment. You should use both on your GopherJS projects.
To install gopherjsvet locally:
go install github.com/gopherjs/gopherjsvet@main