I have this path in my react gulpfile:
var path = { HTML: \'src/index.html\', ALL: [\'src/js/*.js\', \'src
Like Grunt, the double ** is saying, "Look in all the subfolders within js and for all of the .js files."
You can actually refer here for the same:
https://www.codefellows.org/blog/quick-intro-to-gulp-js