How to detect HTMLCollection/NodeList in JavaScript?

Question

I\'m not sure my current implementation is available all the time:

function isNodeList(nodes) {
    var result = Object.prototype.toString.call(nodes);
    /         


        

Answer 1

script:

Element.prototype.isNodeList = function() {return false;}
NodeList.prototype.isNodeList = HTMLCollection.prototype.isNodeList = function(){return true;}

use like this:

var d; // HTMLCollection|NodeList|Element
if(d.isNodeList()){
  /*
    it is HTMLCollection or NodeList
    write your code here
  */
}else{
  /*
    it is not HTMLCollection and NodeList
    write your code here
  */
}