Joining javascript key-value objects as string.

object_join.js

Object.prototype.join = function(glue, separator) { 
  var object = this;

  if (glue == undefined)
    glue = '=';

  if (separator == undefined)
    separator = ',';    

  return $.map(Object.getOwnPropertyNames(object), function(k) { return [k, object[k]].join(glue) }).join(separator);
}

var options = { id : 1, name : 'lucas', country : 'brasil'};

options.join();
> "id=1,name=lucas,country=brasil"

options.join('=>', ' ');
> "id=>1 name=>lucas country=>brasil"