diffr

The goal of diffr is an R package for creating code differences in JavaScript based on:

https://github.com/danvk/codediff.js

library(diffr)
file1 = tempfile()
writeLines("hello, world!\n", con = file1)
file2 = tempfile()
writeLines(paste0(
  "hello world?\nI don't get it\n",
  paste0(sample(letters, 65, replace = TRUE), collapse = "")), con = file2)

diffr(file1, file2, before = "f1", after = "f2")