JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>

JavaScript

var label = 'email';
//var label = 'name';

var array = {
  success: true,
  data: [
    {
      id: 1,
      email: '[email protected]',
      name: 'Mark'
    },
    {
      id: 2,
      email: '[email protected]',
      name: 'Chris'
    },
    {
      id: 3,
      email: '[email protected]',
      name: 'Laura'
    }
  ]
}
	
$.each(array.data, function (i, item) {
	var getID = item.id;
  //var getLabel = item.email;
	//var getLabel = item.''+label+'';
  var getLabel = item.${label};
	console.log('getLabel:');
	console.log(getLabel);
});