JSFiddle - React, Tailwind, and code Playground

by mendesjuan

HTML

<span>Hello</span>
<span>Hello</span>
<span>Hello</span>
<span>Hello</span>

JavaScript

(function( $ ) {
    $.fn.addUp = function(getter) {  
      return Array.prototype.reduce.call(this, function(a,b){
            return a + getter.call($(b));
      }, 0);  
    }
})(jQuery);

console.log(
    $('span').addUp($.fn.height)
);