How to get an array of attribute value from elements in a jQuery object

Question

I use a custom attribute in elements with my own class. I\'m trying to return the value of custom attribute for all elements of the class.

I used jQuery to find th

Answer 1

Simple solution (ES6)

Array.from(document.getElementsByClassName('tab_item')).map(item => item.getAttribute('foo'));

Online demo (jsFiddle)