Detect first item in line wrap | jQuery

detect-first-wrap.js

'use strict';

$(document).ready(function() {
  // Function to add class to first item in line wrap
  function firstWrapClass(selector, classToApply) {
    var offset = 0;
    var last = 0;
  
    selector.each(function () {
      $(this).removeClass(classToApply);
      offset = $(this).offset().left;
  
      if (offset < last) {
        $(this).addClass(classToApply);
      }
  
      last = offset;
    });
  }
});