Function last

deps/npm/test/lib/utils/log-file.js:14–14

const getId = (d = new Date()) => d.toISOString().replace(/[.:]/g, '_')
const last = arr => arr[arr.length - 1]
const range = (n) => Array.from(Array(n).keys())
const makeOldLogs = (count, oldStyle) => {
  const d = new Date()