Back to basics

example.js

// Old and busted.
Object.keys(obj).forEach(function (k, _, __) {
  var val = obj[k]
  if (val && typeof val === "object") {
    children.push(k)
  } else {
    out += safe(k) + " = " + safe(val) + "\n"
  }
})

// New hotness.
Object.keys(obj).forEach(function (k, _, __) {
  var val = obj[k]
  if (val && typeof val === "object")
    children.push(k)
  else
    out += safe(k) + " = " + safe(val) + "\n"
})