Is the Javascript file successfully loaded?

Is there a way to verify if all 8 javascript files are loaded in an html document and handle any errors that may occur if one of the files fails to load, across various browsers?

Thank you for your help!

Answer №1

One way to prevent errors when trying to access functions or data that don't exist is by using a "try catch" block, allowing you to handle the situation as needed.

Answer №2

If you're looking to detect if a file is properly loaded in javascript, one method to consider is using the "try-catch" block.

Simply place the function call or variable reference of the file within the try block. If no errors are caught and it does not enter the 'catch' block, then the file is successfully loaded.

For more detailed information on which files are loading and any potential errors, tools like Firebug can be utilized.

I hope this explanation proves beneficial. Feel free to mark this as the solution if you find it helpful.

Answer №3

Identify 404 errors with Firebug or a similar tool.

If a script works in one browser, it should work in all browsers without any compatibility issues.

To manage loading errors, consider using a script loading framework like RequireJS to dynamically load scripts.

Tip: Accepting good answers can enhance your reputation and encourage people to respond to your questions more quickly and frequently.

Answer №4

To dynamically include a JavaScript file, insert a line of code that appends an element to the Document Object Model (DOM) using a specific and unique identifier... Subsequently verify if the element with that identifier already exists within the DOM. The presence of this element confirms the successful loading of the JavaScript file.

Answer №5

In order to add namespaces/global variables to each file and verify them, you can follow these steps:

in fileName.js:
 window.fileName = true;

Afterwards, for verification:

<script> if (!window.fileName) {...} </script>

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