Dynamically load JavaScript from an external source in real-time

Is it possible to dynamically load JavaScript code from an external site when a user clicks on a button? For example:

<button onclick="LoadJSFromURL('facebook.com/blablabla')" />

After the user presses the button, we would attach a new script to the document like this:

<script> Share.WorkUrl="http://MySite.com"; Share.UserId=5 </script> <script src="http://Facebookcom/blabalbal" ></script>

Finally, how can we ensure that this newly loaded script is executed as intended?

Answer №1

Here is a resource for dynamically loading a javascript file from a different domain: How to load a javascript file from a different domain?

var script = new Element("script", {src: "myBigCodeLibrary.js", type: "text/javascript"});

script.onload = script.onreadystatechange = function(){
    if (!this.readyState ||
        this.readyState == "loaded" || this.readyState == "complete") {
        //The script has been successfully loaded
    }
};

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