Laravel Blade变量在JavaScript文件中引用报错的解决方案

我在index.blade.php文件中定义了变量const deleteUrl = "{{ url('ingredients') }}/";，尝试在index.js中使用时，控制台报错：

Uncaught (in promise) ReferenceError: deleteUrl is not defined at index-4b1b8432.js:77:27775

相关代码片段 #

index.blade.php #

<x-app-layout>
{{-- 其他代码 --}}
</x-app-layout>
<x-slot name="jsFiles">
    const deleteUrl = "{{ url('ingredients') }}/";
    <script src="{{ asset("js/ingredients/index.js") }}"></script>
</x-slot>

index.js #

import $ from 'jquery';
$(function() {
    console.log(deleteUrl);
});

app.blade.php #

<!DOCTYPE html>
<html lang="{{ str_replace('_', '-', app()->getLocale()) }}">
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <meta name="csrf-token" content="{{ csrf_token() }}">

        <title>{{ config('app.name', 'Laravel') }}</title>

        <!-- Fonts -->
        <link rel="preconnect" href="https://fonts.bunny.net">
        <link href="https://fonts.bunny.net/css?family=figtree:400,500,600&display=swap" rel="stylesheet" />

        <!-- Scripts -->
        @vite(['resources/css/app.css', 'resources/js/app.js', 'resources/js/ingredients/index.js'])
    </head>
    <body class="font-sans antialiased">
        <div class="min-h-screen bg-gray-100">
            @include('layouts.navigation')

            <!-- Page Heading -->
            @if (isset($header))
                <header class="bg-white shadow">
                    <div class="max-w-7xl mx-auto py-6 px-4 sm:px-6 lg:px-8">
                        {{ $header }}
                    </div>
                </header>
            @endif

            <!-- Page Content -->
            <main>
                {{ $slot }}
            </main>
        </div>
        <!-- JS Files -->
        {{ $jsFiles ?? '' }}
    </body>
</html>

验证有效的解决方案 #

方案1：通过隐藏输入框传递变量 #

在Blade模板中添加隐藏输入框存储URL值：

<input type="hidden" id="deleteUrl" value="{{url('ingredients')}}/"/>

在index.js中读取该值：

import $ from 'jquery';
$(function() {
    const deleteUrl = $('#deleteUrl').val();
    console.log(deleteUrl);
});

方案2：在Vite加载前定义全局变量 #

修改app.blade.php，在@vite指令前插入脚本定义全局变量，确保Vite编译的JS加载时变量已存在：

<!-- Scripts -->
<script>
    const deleteUrl = "{{ url('ingredients') }}/";
</script>
@vite(['resources/css/app.css', 'resources/js/app.js', 'resources/js/ingredients/index.js'])

内容的提问来源于stack exchange，提问作者janullo789