为什么我使用 JQuery 得到的只是文本而不是 HTML？

Question

I have a H1 tag & i want to get HTML() of this element on button click but right now getting just text instead of HTML. How can i get proper HTML?

My Code:-

 $(function(){ $('button').click(function(){ alert($('h1').html()); }); });

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <h1 style="color:indianRed">Heading 1</h1> <button>Click</button>

Answer 1

You should use outerHTML :

The outerHTML attribute of the Element DOM interface gets the serialized HTML fragment describing the element including its descendants. It can also be set to replace the element with nodes parsed from the given string.

 $(function(){ $('button').click(function(){ alert($('h1').get(0).outerHTML); }); });

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <h1 style="color:indianRed">Heading 1</h1> <button>Click</button>

Answer 2

outerHTML in javascript

 $(function(){ $('button').click(function(){ alert(document.querySelector("h1").outerHTML); }); });

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <h1 style="color:indianRed">Heading 1</h1> <button>Click</button>

Answer 3

The .html() function return the inner html of an element, to get the outerHTML of any given element, try to wrap it inside a container then get his html using .html() .

$(function(){
  $('button').click(function(){
        var elHTML = $('<div></div>').append($('h1'));
       alert(elHTML.html());
   });
 });