JavaScript implementation method of simply traversing all attributes of DOM objects_javascript skills

The example in this article describes the implementation method of traversing all attributes of DOM objects in JavaScript. Share it with everyone for your reference, the details are as follows:

HTML of DOM object:

1. Traverse all attributes of the DOM object (all attributes will be traversed regardless of whether they are set in the HTML tag)

var obj=document.getElementById("btnToggleState") 
var s="";
for(var elem in obj)
   s+=elem+"\n";
alert(s);

2. Traverse the attributes set in the HTML tag of the DOM object

$.each($('#btnToggleState')[0].attributes,function(i,attrib){
  alert(i+":"+attrib.name+":"+attrib.value);
});

I hope this article will be helpful to everyone in JavaScript programming.