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ramniksingh's avatar

Multi Level Route Breaks the Javascript Front End

I have this route :

Route::get('/roles', [RoleController::class, 'index']); // Shows the list of roles

Controller calls for blade views and everything works perfectly . Sidebar menu working fine which has some javascript functions.

But as soon as I use this route without changing any thing else, my sidebar menu not working properly :

Route::get('/test/roles', [RoleController::class, 'index']);

I have linked to assets in blade view via asset() and there is no file missing while inspecting the code.

This error comes only in multi level route.

Uncaught TypeError: Cannot read properties of null (reading 'closest') at HTMLDocument.<anonymous> (sidebarmenu.js:88:33)

0 likes
3 replies
LaryAI's avatar
LaryAI
AI
Best Answer
Level 58

The issue you're encountering is likely due to the way your JavaScript is handling the DOM elements. When you change the route to a multi-level path, it might be affecting the way your JavaScript is selecting elements or the way your assets are being loaded.

Here are a few steps to troubleshoot and resolve the issue:

  1. Check JavaScript Selectors: Ensure that your JavaScript selectors are correctly targeting the elements. The error Cannot read properties of null (reading 'closest') suggests that the element you're trying to access is not found in the DOM. This could be due to a change in the structure or the way elements are being loaded.

  2. Update Asset Paths: Verify that your asset paths are correctly resolved. When you move to a multi-level route, the relative paths might break. Use the asset() helper to generate the correct URLs for your assets.

  3. Debug the JavaScript: Add some debugging statements to your JavaScript to check if the elements are being correctly selected.

Here is a more detailed approach:

Step 1: Check JavaScript Selectors

Ensure that your JavaScript is correctly selecting the elements. For example, if you have:

document.querySelector('.sidebar-menu').closest('.menu-item');

Make sure that .sidebar-menu exists in the DOM. You can add a console log to check:

const sidebarMenu = document.querySelector('.sidebar-menu');
console.log(sidebarMenu);
if (sidebarMenu) {
    sidebarMenu.closest('.menu-item');
} else {
    console.error('Sidebar menu not found');
}

Step 2: Update Asset Paths

Ensure that your assets are correctly linked. Use the asset() helper in your Blade views:

<script src="{{ asset('js/sidebarmenu.js') }}"></script>

Step 3: Debug the JavaScript

Add debugging statements to your JavaScript to ensure elements are being selected correctly:

document.addEventListener('DOMContentLoaded', function() {
    const sidebarMenu = document.querySelector('.sidebar-menu');
    if (sidebarMenu) {
        console.log('Sidebar menu found');
        sidebarMenu.closest('.menu-item');
    } else {
        console.error('Sidebar menu not found');
    }
});

Example Blade View

Ensure your Blade view is correctly linking the assets:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Roles</title>
    <link rel="stylesheet" href="{{ asset('css/app.css') }}">
</head>
<body>
    <div class="sidebar-menu">
        <!-- Sidebar content -->
    </div>
    <script src="{{ asset('js/sidebarmenu.js') }}"></script>
</body>
</html>

By following these steps, you should be able to identify and resolve the issue with your multi-level route affecting the JavaScript functionality. If the problem persists, consider providing more details about the structure of your HTML and JavaScript code for further assistance.

1 like
Snapey's avatar

You are linking to some css or js file in a relative way and not an absolute way.

Start by opening dev tools in the browser and see what assets are broken when you load a page with multiple parts to the path.

ramniksingh's avatar

There was an issue with the Javascript code in finding sidebar-nav element when there are nested routes. Got it corrected now. Issue was with javascript code.

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