Just a quick question, can we actually add content to a
<div id="whatEverId">hello one</div>document.getElementById("whatEverId").innerHTML += " hello two";
Is there a way to INSERT content into the div without replacing it??? So that I could achieve
<div id="whatEverId">hello one hello two</div>(using something similar, of course)
<div id="random">hey there</div>
<script>
document.getElementById("whatsoever").innerHTML += " hey you";
</script>
It is important to note that when using element.innerHTML += 'content', it will reset input fields and textarea fields to their default empty state, uncheck checkboxes, and remove any events attached to those elements (such as onclick, on hover, etc.). This is because the entire innerHTML is reinterpreted by the browser, causing it to be cleared and then refilled with the combined content.
If you want to preserve the state of the elements, you should create a new element (such as a <span>) and append it to the current element like this:
let newElement = 'span'
newElement.innerHTML = 'new text'
document.getElementById('oldElement').appendChild(newElement)
Changing the content of an element with the id "whatEverId" by adding the string "hello two" to it using JavaScript.
Instead of following jcomeau_ictx's inefficient method for editing innerHTML, a more effective approach is to detach the element, make changes, and then reattach it to the parent node. For further guidance, refer to Ben Cherry's PPT available at
To properly detach elements, utilize Native JavaScript from this gist: https://gist.github.com/cowboy/938767
In case you are appending content, simply replace the equal sign with a plus equals sign.
document.getElementById("whatEverId").innerHTML += 'hello two';
If you are prefixing content:
document.getElementById("whatEverId").innerHTML = 'hello two' + document.getElementById("whatEverId").innerHTML;
I highly recommend using jQuery or MooTools javascript libraries/frameworks for tasks like this. If you need to add tags and not just text nodes, then it is advisable to use the DOM createElement method or one of those libraries/frameworks mentioned above.
To achieve this, simply add a div string as shown below:
Use the following code to append 'Hello Two' inside the element with the id of div_id: document.getElementById('div_id').innerHTML += 'Hello Two';
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