How Can I Dynamically Load an External JavaScript File Based on a Condition?

Programmatically Loading JS Within JS

Question: How can you load an external JS file dynamically within another JavaScript file, based on a conditional statement?

Answer:

Despite attempts to leverage document.createElement() for DOM-based loading, it may seem like the external JS file was loaded but remains inaccessible within the current file. This is because the execution of JavaScript continues while the loaded script is still loading, making its content unavailable.

To address this issue, consider implementing the following steps:

1. Create a new script element using document.createElement('script').
2. Specify the source of the external JS file using script.src = something.

3. Define an event listener for the script's load event, allowing access to the script's content once it's loaded:

   script.onload = function () {
       // Perform desired actions with the script's content
   };

4. Finally, append the script element to the DOM using document.head.appendChild(script) or a similar method.

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