This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The ChildNode.after() method inserts a set of Node or DOMString objects in the children list of this ChildNode's parent, just after this ChildNode. DOMString objects are inserted as equivalent Text nodes.
[Throws, Unscopable] void ChildNode.after((Node or DOMString)... nodes);
HierarchyRequestError: Node cannot be inserted at the specified point in the hierarchy.var parent = document.createElement("div");
var child = document.createElement("p");
parent.appendChild(child);
var span = document.createElement("span");
child.after(span);
console.log(parent.outerHTML);
// "<div><p></p><span></span></div>"
 var parent = document.createElement("div");
var child = document.createElement("p"); 
parent.appendChild(child);
child.after("Text"); 
console.log(parent.outerHTML);
// "<div><p></p>Text</div>" var parent = document.createElement("div");
var child = document.createElement("p"); 
parent.appendChild(child); 
var span = document.createElement("span");
child.after(span, "Text"); 
console.log(parent.outerHTML);
// "<div><p></p><span></span>Text</div>" ChildNode.after() is unscopableThe after() method is not scoped into the with statement. See Symbol.unscopables for more information.
with(node) { 
  after("foo");
}
// ReferenceError: after is not defined  You can polyfill the after() method in Internet Explorer 9 and higher with the following code:
//from: https://github.com/jserz/js_piece/blob/master/DOM/ChildNode/after()/after().md
(function (arr) {
  arr.forEach(function (item) {
    if (item.hasOwnProperty('after')) {
      return;
    }
    Object.defineProperty(item, 'after', {
      configurable: true,
      enumerable: true,
      writable: true,
      value: function after() {
        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.parentNode.insertBefore(docFrag, this.nextSibling);
      }
    });
  });
})([Element.prototype, CharacterData.prototype, DocumentType.prototype]);  //https://github.com/FabioVergani/js-Polyfill_Element.prototype.after/blob/master/after.js
(function(x){
 var o=x.prototype,p='after';
 if(!o[p]){
    o[p]=function(){
     var e, m=arguments, l=m.length, i=0, t=this, p=t.parentNode, n=Node, s=String, d=document;
     if(p!==null){
        while(i<l){
         e=m[i];
         if(e instanceof n){
            t=t.nextSibling;
            if(t!==null){
                p.insertBefore(e,t);
            }else{
                p.appendChild(e);
            };
         }else{
            p.appendChild(d.createTextNode(s(e)));
         };
         ++i;
        };
     };
    };
 };
})(Element);
/*
min:
(function(x){
 var o=x.prototype;
 o.after||(o.after=function(){var e,m=arguments,l=m.length,i=0,t=this,p=t.parentNode,n=Node,s=String,d=document;if(p!==null){while(i<l){((e=m[i]) instanceof n)?(((t=t.nextSibling )!==null)?p.insertBefore(e,t):p.appendChild(e)):p.appendChild(d.createTextNode(s(e)));++i;}}});
}(Element));
*/
  | Specification | Status | Comment | 
|---|---|---|
| DOM The definition of 'ChildNode.after()' in that specification.  |  Living Standard | Initial definition. | 
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 54 | 17 | 49 | No | 39 | No | 
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 54 | 54 | No | 49 | 39 | No | 6.0 | 
    © 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
    https://developer.mozilla.org/en-US/docs/Web/API/ChildNode/after