Utilizing JavaScript to verify the presence of a div element within dynamically injected HTML code

While working on a website, I have implemented an embed function which involves calling a javascript from my server to inject HTML on another remote server.

To ensure that these embeds also benefit from Google ranking, I have included a piece of HTML in the embed code. Here's how it looks:

<script type="text/javascript" src="http://myserver.com/myscript.js"></script>
<div id="embedSource">Source: <a href="myserver.com">mysite.com</a></div>

The issue arises when trying to detect the presence of the "embedSource" div within the embed code using a detection script in the initial "myscript.js". This is because the javascript is executed before the div is added to the DOM, making it impossible to add the embedSource div first.

I attempted to check this using:

window.onload = CheckIfEmbedCodeIsComplete();

However, this event is triggered too early in Chrome, FF and IE. Even though it should suffice for most browsers, right? I also tried:

setTimeOut(CheckIfEmbedCodeIsComplete(), 5000);

But once again, the check occurs immediately instead of after the specified 5 seconds.

What steps can I take to effectively verify the existence of that div?

javascript

Answer №1

It is important to include an onload-function for your script to execute properly. You can refer to a solution here.

If you are planning to embed multiple objects on a website, using classes instead of ids is recommended. Having multiple elements with the same id is not allowed.

Answer №2

For increased loading speed, it's best to move your script out of the head section and place it just before the closing </body> tag.

<body>
   <div id="embedSource">Source: <a href="myserver.com">mysite.com</a></div>
   ...
   ...
   <script type="text/javascript" src="http://myserver.com/myscript.js"></script>
</body>

To optimize page loading times and ensure that the DOM is fully loaded for accessing elements, follow this practice as recommended by Yahoo Developer Network.

Answer №3

In solving my own query, I found the solution by adjusting the timeout function as shown below:

setTimeout('ExecuteCodeCheck()', 5000);

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