JQuery equivalent in prototype

What is the form.serialize equivalent in JQuery if there is one?

$('person-example').serialize()
// -> 'username=sulien&age=22&hobbies=coding&hobbies=hiking'

$('person-example').serialize(true)
// -> {username:开发者_JAVA技巧 'sulien', age: '22', hobbies: ['coding', 'hiking']}

It's the same, however you have to put # before your selector to select certain ID

$('#person-example').serialize();