How to replace the line in the console in all files with the js extension?

Question

ubuntu

Question for unix connoisseurs) there is a server on centos
How can I replace a string (search-replace) in all files with the js extension in a certain folder using the console, taking into account subfolders?
paths
var/www/html/site1/main.js
var/www/html/site2/main.js
var/www/html/site3/main.js and so on

Answer 1

find ./some_path -type f -name "*.js" -exec sed -i 's/foo/bar/' {} \;