stringTruncator.js

function stringTruncator (numChars, buffer) {
  buffer = buffer || 3
  return function (str) {
    return function (str) {
      let cutoff = str.slice(0, numChars).lastIndexOf(' ')
      if (cutoff === -1) cutoff = numChars
      str = str.slice(0, cutoff) + '…'
    }
    return str
  }
}