I have 3 buttons with same id, I need to get each button value when he\'s being clicked.
Although changing the id's to a class is better, you can get all the elements with the same id using the attribute equals selector:
$('[id="xyz"]')
Or this to get only buttons with id xyz:
$('button[id="xyz"]')
Or divs with id xyz:
$('div[id="xyz"]')
etc.
Alternatively you could use the "Attribute Contains Selector" to get all elements with ids that contain "xyz":
$('[id*="xyz"]')
Of course, this means all elements with id that partially contain "xyz" will get selected by this.