function isAllDigits(s) {
  if (s.length === 0)
    return false;
  for (var i = 0; i < s.length; ++i) {
    const code = s.charCodeAt(i);
    if (code < 48 || code > 57)
      return false;
  }
  return true;
}
function getOwnNonIndexProperties(obj, filter) {
  const props = [];
  var p = 0;
  if (filter === ONLY_ENUMERABLE) {
    const keys = Object.keys(obj);
    for (var i = 0; i < keys.length; ++i) {
      const key = keys[i];
      if (!isAllDigits(key))
        props[p++] = key;
    }
  } else {
    // TODO or defer to C++ implementation
  }
  return props;
}

const n = 1e6;
const vals = [
  { foo: 'bar', baz: 5, quux: true },
  { '1': 'bar', '2': 5, '3': 5.1 },
  { '-1': 'bar', '2': 5, '3a': 40000 },
  { '': () => {}, '1234567890-0987654321': false, quux: false }
];
const {
  propertyFilter: {
    ALL_PROPERTIES,
    ONLY_ENUMERABLE
  }
} = process.binding('util');
const filter = ONLY_ENUMERABLE;
var name;


// Case #1
//~ const {
  //~ getOwnNonIndexProperties,
//~ } = process.binding('util');
//~ name = 'C++';

// Case #2
function isAllDigits(s) {
  if (s.length === 0)
    return false;
  for (var i = 0; i < s.length; ++i) {
    const code = s.charCodeAt(i);
    if (code < 48 || code > 57)
      return false;
  }
  return true;
}
function getOwnNonIndexProperties(obj, filter) {
  const props = [];
  var p = 0;
  if (filter === ONLY_ENUMERABLE) {
    const keys = Object.keys(obj);
    for (var i = 0; i < keys.length; ++i) {
      const key = keys[i];
      if (!isAllDigits(key))
        props[p++] = key;
    }
  } else {
  }
  return props;
}
name = 'JS';


// Run the benchmark
console.time(name);
for (var i = 0; i < n; ++i) {
  for (var j = 0; j < vals.length; ++j)
    getOwnNonIndexProperties(vals[j], filter);
}
console.timeEnd(name);