How to append data to div using JavaScript?

问题:

I\'m using AJAX to append data to div element, where I fill the div from JavaScript, how can I append new data to the div without losing the previous data found in div?

回答1:

Try this:

var div = document.getElementById(\'divID\');

div.innerHTML += \'Extra stuff\';

回答2:

Using appendChild:

var theDiv = document.getElementById(\"<ID_OF_THE_DIV>\");
var content = document.createTextNode(\"<YOUR_CONTENT>\");
theDiv.appendChild(content);

Using innerHTML:
This approach will remove all the listeners to the existing elements as mentioned by @BiAiB. So use caution if you are planning to use this version.

var theDiv = document.getElementById(\"<ID_OF_THE_DIV>\");
theDiv.innerHTML += \"<YOUR_CONTENT>\"; 

回答3:

Beware of innerHTML, you sort of lose something when you use it:

theDiv.innerHTML += \'content\',     

Is equivalent to:

theDiv.innerHTML = theDiv.innerHTML + \'content\'

Which will destroy all nodes inside your div and recreate new ones. All references and listeners to elements inside it will be lost.

If you need to keep them (when you have attached a click handler, for example), you have to append the new contents with the DOM functions(appendChild,insertAfter,insertBefore):

var newNode = document.createElement(\'div\');      
newNode.innerHTML = data;
theDiv.appendChild( newNode )

回答4:

If you want to do it fast and don\'t want to lose references and listeners use: .insertAdjacentHTML();

\"It does not reparse the element it is being used on and thus it does not corrupt the existing elements inside the element. This, and avoiding the extra step of serialization make it much faster than direct innerHTML manipulation.\"

Supported on all mainline browsers (IE6+, FF8+,All Others and Mobile): http://caniuse.com/#feat=insertadjacenthtml

Example from https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentHTML

// <div id=\"one\">one</div>
var d1 = document.getElementById(\'one\');
d1.insertAdjacentHTML(\'afterend\', \'<div id=\"two\">two</div>\');

// At this point, the new structure is:
// <div id=\"one\">one</div><div id=\"two\">two</div>

回答5:

If you are using jQuery you can use $(\'#mydiv\').append(\'html content\') and it will keep the existing content.

http://api.jquery.com/append/

回答6:

Even this will work:

var div = document.getElementById(\'divID\');

div.innerHTML += \'Text to append\';

回答7:

you can use jQuery. which make it very simple.

just download the jQuery file add jQuery into your HTML
or you can user online link:

<script src=\"https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js\"></script>

and try this:

 $(\"#divID\").append(data);

回答8:

IE9+ (Vista+) solution, without creating new text nodes:

var div = document.getElementById(\"divID\");
div.textContent += data + \" \";

However, this didn\'t quite do the trick for me since I needed a new line after each message, so my DIV turned into a styled UL with this code:

var li = document.createElement(\"li\");
var text = document.createTextNode(data);
li.appendChild(text);
ul.appendChild(li);

From https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent :

Differences from innerHTML

innerHTML returns the HTML as its name indicates. Quite often, in order to retrieve or write text within an element, people use innerHTML. textContent should be used instead. Because the text is not parsed as HTML, it\'s likely to have better performance. Moreover, this avoids an XSS attack vector.

回答9:

Why not just use setAttribute ?

thisDiv.setAttribute(\'attrName\',\'data you wish to append\');

Then you can get this data by :

thisDiv.attrName;

回答10:

java script

document.getElementById(\"divID\").html(\"this text will be added to div\");

jquery

$(\"#divID\").html(\"this text will be added to div\");

Use .html() without any arguments to see that you have entered. You can use the browser console to quickly test these functions before using them in your code.