hello i bring to you two ways for get index of element or order of element or jquery naming eq

you can select element by its order(eq) like this

$('div.name img:eq(2)')

but if you have element and you want to get its eq

1-
jquery introduced index method that gives you the element index
$('.classname').index()

2-
you can get the length of the previous elements so the number is your index :)
$('.classname').prevAll().length

so happy coding :) any questions just reply these post :)