Function pairs

underscore.js:575–583

(obj)

  // Convert an object into a list of `[key, value]` pairs.
  // The opposite of `_.object` with one argument.
  function pairs(obj) {
    var _keys = keys(obj);
    var length = _keys.length;
    var pairs = Array(length);
    for (var i = 0; i < length; i++) {
      pairs[i] = [_keys[i], obj[_keys[i]]];
    }
    return pairs;
  }

  // Invert the keys and values of an object. The values must be serializable.
  function invert(obj) {