Madison Square Market

I’m on the 2 stage of Madison Square Market Task. But my code isn’t working. Why?https://www.codecademy.com/courses/learn-jquery/projects/madison-square-market

$(document).ready(){
$('#cart').on('click', () =>
{
$('#cartMenu').show();
})

$('#account').on('click', () =>
{
 $('#accountMenu').show(); 
})
$('#help').on('click', () =>
{
  $('#helpMenu').show();
})
}