inspect.js

Object.prototype.inspect = function () {
  function pad(depth) {
    return Array(depth).join("  ");
  }

  function down(attr, val, depth) {
    var output = pad(depth) + attr + ': ';
    output += (typeof(val) == 'object' ? "{" : val);
    return output + "\n";
  }

  function up(depth) {
    var output = pad(depth) + "}";
    if (depth > 1) { output += "\n"; }
    return output;
  }

  function traverseObject(obj, depth) {
    var output = "";
    var depth = depth || 1;
    Object.keys(obj).forEach(function (attr) {
      var val = obj[attr];
      output += down(attr, val, depth);
      if (typeof(val) == 'object') {
        output += traverseObject(val, depth + 1) + up(depth);
      }
    });
    return output;
  }

  return traverseObject(this);
};