js prepend IE polyfill

js prepend() IE10 polyfill

        (function (arr) {
            arr.forEach(function (item) {
              if (item.hasOwnProperty('prepend')) {
                return;
              }
              Object.defineProperty(item, 'prepend', {
                configurable: true,
                enumerable: true,
                writable: true,
                value: function prepend() {
                  var argArr = Array.prototype.slice.call(arguments),
                    docFrag = document.createDocumentFragment();
          
                  argArr.forEach(function (argItem) {
                    var isNode = argItem instanceof Node;
                    docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
                  });
          
                  this.insertBefore(docFrag, this.firstChild);
                }
              });
            });
          })([Element.prototype, Document.prototype, DocumentFragment.prototype]);