JSFiddle - React, Tailwind, and code Playground

by synz izynz

HTML

<div class="saveFilter">
  <input rel="class-7c" type="checkbox">
  <input rel="class-7d" type="checkbox">
  <input rel="class-10c" type="checkbox">
</div>

JavaScript

var cssClassRel  = ["class-7b","class-7c","class-10c"];
/*
var cssClassRelSplit = cssClassRel.split(" ");
var cssFor = [];
var cssEach = [];
for(var i=0; i<cssClassRelSplit.length; i++){
  cssFor = cssClassRelSplit[i]
}
*/
$('div.saveFilter').find('input:checkbox').each(function () {
   var cssEach = $(this).attr('rel'); ////class-7b,class-7c,class-10c,class-10d,class-12c etc
   var checklist = $.inArray( cssEach , cssClassRel );
   $(this).prop('checked', checklist !== -1)
});