backpressure.js

var fs = require('fs')
var diff = require('diff-utility');

var f1 = '/tmp/diff-1'
var f2 = '/tmp/diff-2'

fs.writeFileSync(f1, "abcdef".split('').join('\n'))
fs.writeFileSync(f2, "cdefgh".split('').join('\n'))

diff(f1, f2, {stream: true}).ratelimit(1,1000).each(function(obj){
    console.log(obj);
  })

package.json

{
  "name": "diff-backpressure",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "Jelle 'wires' Herold",
  "license": "AGPL-1",
  "dependencies": {
    "diff-utility": "wires/node-diff-utility"
  }
}