Object.toSource

toSource.js

var toSource = function (value) {
  function show (value) {
    if (_.isUndefined(value)) {
      value = "undefined";
    } else if (_.isFunction(value)) {
      value = "" + value;
      var indentMatches = value.match(/^ +/mg);
      if (!_.isEmpty(indentMatches)) {
        var indentSize = Math.min.apply(null, _.map(indentMatches, function (x) { return x.length; }));
        value = value.replace(new RegExp("^ {" + indentSize + "}", "mg"), "");
      }
    } else if (_.isString(value)) {
      value = '"' + value + '"';
    } else if (_.isArray(value)) {
      value = _.isEmpty(value) ? "[]" : "[\n" + _.map(value, show).join(",\n").replace(/^/mg, "  ") + "\n]";
    } else if (_.isObject(value)) {
      value = _.isEmpty(value) ? "{}" : "{\n" + _.map(value, function (value, key) { return key + ": " + show(value); }).join(",\n").replace(/^/mg, "  ") + "\n}";
    }
    return value;
  }

  return show(value);
}