Filter number of repeated elements in a text file list based on minimum number

filterRepeats.js

#!/usr/bin/env node
// Usage: ./filterRepeats.js <minimum> <file path>
// Example: ./filterRepeats.js 10 list.txt

var fs = require('fs')
var min = process.argv[2]
var listPath = process.argv[3]
var list = fs.readFileSync(listPath, 'utf8').split('\n')
var counter = {}
list.forEach(count)
function count(name) {
  if (!counter[name]) { counter[name] = 0 }
  counter[name]++
}
Object.keys(counter).forEach(printHigh)
function printHigh(name) {
  if (counter[name] >= min) {
    console.log(name)
  }
}