Laravel 8 controller doesn't recognize JavaScript utility

Question

I'm building a site with Laravel 8 and trying to pass PHP variables into JavaScript. At first I was using this kind of construction in my Blade file:

<script>
  let x = {{ $x }};
</script>

but this gets mangled by the format-on-save action in VSCode because the braces get interpreted as JavaScript and separated by spaces.

As an alternative, I've tried to install Laracasts/Utilities, following the instructions here. After carrying out all the steps, however, the controller doesn't recognize JavaScript:

<?php

namespace App\Http\Controllers;
...
use JavaScript;               // <--- no info on mouseover

class XController extends Controller
{
  public function f()
  {
    JavaScript::put([...]);   // <--- Undefined type 'JavaScript'

I'm a beginner at PHP and Laravel, so this is beyond me. It seems that the alias isn't working properly (even though I listed it in aliases in config/app.php) based on the fact that no information pops up when I mouse over use JavaScript in VSCode. I've tried running magic commands like php artisan optimize:clear, php artisan config:clear, and composer dump-autoload, but they didn't change anything and maybe aren't relevant. What else can I try at this point?

BreadFish · Accepted Answer · 2021-01-18 23:07:44Z

1

there is easy way to pass php variable to tag, however I'm also not much experienced and I feel like it is kind of a workaround. So there are 2 simple steps:

In your blade add:

<input id="x" type="hidden" value="{{ $x }}>
In the script get element value:

var x = document.getElementById("x").value

answered Jan 18, 2021 at 23:07

BreadFish

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