我在welcome.blade.php文件中使用vue cdn链接。我使用脚本在欢迎刀片。在app.js中，我定义了值实例。
require('./bootstrap');
import Vue from 'vue';
let app = new Vue({
el:'#app',
data:{
name:'project',
}
});
导出默认应用;
然后使用未定义的常量名称-假设'name'(这将在PHP的未来版本抛出错误)(视图:C:xampphtdocstestresourcesviewswelcome.blade.php)发生。如何解决这个问题?我应该如何管理这些文件，这样它才能正确加载，我才能使用vue-router和组件。当我移动资源/app.js文件
中的脚本内容时，这是我的欢迎刀片文件我welcome.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">
<title>Laravel</title>
<!-- Fonts -->
<link href="https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
<script type='text/javascript'>
</script>
<link rel="stylesheet" href="{{asset('css/app.css')}}">
<script src='../js/app.js'></script>
<!-- Styles -->
<style>
/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}[hidden]{display:none}html{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;line-height:1.5}*,:after,:before{box-sizing:border-box;border:0 solid #e2e8f0}a{color:inherit;text-decoration:inherit}svg,video{display:block;vertical-align:middle}video{max-width:100%;height:auto}.bg-white{--bg-opacity:1;background-color:#fff;background-color:rgba(255,255,255,var(--bg-opacity))}.bg-gray-100{--bg-opacity:1;background-color:#f7fafc;background-color:rgba(247,250,252,var(--bg-opacity))}.border-gray-200{--border-opacity:1;border-color:#edf2f7;border-color:rgba(237,242,247,var(--border-opacity))}.border-t{border-top-width:1px}.flex{display:flex}.grid{display:grid}.hidden{display:none}.items-center{align-items:center}.justify-center{justify-content:center}.font-semibold{font-weight:600}.h-5{height:1.25rem}.h-8{height:2rem}.h-16{height:4rem}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.leading-7{line-height:1.75rem}.mx-auto{margin-left:auto;margin-right:auto}.ml-1{margin-left:.25rem}.mt-2{margin-top:.5rem}.mr-2{margin-right:.5rem}.ml-2{margin-left:.5rem}.mt-4{margin-top:1rem}.ml-4{margin-left:1rem}.mt-8{margin-top:2rem}.ml-12{margin-left:3rem}.-mt-px{margin-top:-1px}.max-w-6xl{max-width:72rem}.min-h-screen{min-height:100vh}.overflow-hidden{overflow:hidden}.p-6{padding:1.5rem}.py-4{padding-top:1rem;padding-bottom:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.pt-8{padding-top:2rem}.fixed{position:fixed}.relative{position:relative}.top-0{top:0}.right-0{right:0}.shadow{box-shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px 0 rgba(0,0,0,.06)}.text-center{text-align:center}.text-gray-200{--text-opacity:1;color:#edf2f7;color:rgba(237,242,247,var(--text-opacity))}.text-gray-300{--text-opacity:1;color:#e2e8f0;color:rgba(226,232,240,var(--text-opacity))}.text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.text-gray-500{--text-opacity:1;color:#a0aec0;color:rgba(160,174,192,var(--text-opacity))}.text-gray-600{--text-opacity:1;color:#718096;color:rgba(113,128,150,var(--text-opacity))}.text-gray-700{--text-opacity:1;color:#4a5568;color:rgba(74,85,104,var(--text-opacity))}.text-gray-900{--text-opacity:1;color:#1a202c;color:rgba(26,32,44,var(--text-opacity))}.underline{text-decoration:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.w-5{width:1.25rem}.w-8{width:2rem}.w-auto{width:auto}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}@media (min-width:640px){.sm:rounded-lg{border-radius:.5rem}.sm:block{display:block}.sm:items-center{align-items:center}.sm:justify-start{justify-content:flex-start}.sm:justify-between{justify-content:space-between}.sm:h-20{height:5rem}.sm:ml-0{margin-left:0}.sm:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm:pt-0{padding-top:0}.sm:text-left{text-align:left}.sm:text-right{text-align:right}}@media (min-width:768px){.md:border-t-0{border-top-width:0}.md:border-l{border-left-width:1px}.md:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1024px){.lg:px-8{padding-left:2rem;padding-right:2rem}}@media (prefers-color-scheme:dark){.dark:bg-gray-800{--bg-opacity:1;background-color:#2d3748;background-color:rgba(45,55,72,var(--bg-opacity))}.dark:bg-gray-900{--bg-opacity:1;background-color:#1a202c;background-color:rgba(26,32,44,var(--bg-opacity))}.dark:border-gray-700{--border-opacity:1;border-color:#4a5568;border-color:rgba(74,85,104,var(--border-opacity))}.dark:text-white{--text-opacity:1;color:#fff;color:rgba(255,255,255,var(--text-opacity))}.dark:text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.dark:text-gray-500{--tw-text-opacity:1;color:#6b7280;color:rgba(107,114,128,var(--tw-text-opacity))}}
</style>
<style>
body {
font-family: 'Nunito', sans-serif;
}
</style>
</head>
<body class="antialiased">
<div id="app">
<h4>hello</h4>
<h4>@{{name}}</h4>
</div>
<script src='../../js/app.js'>
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue-router/4.0.0-329e962/vue-router.cjs.min.js"></script>
</body>
</html>
本行错误
<h4>@{{name}}</h4>
确保从控制器设置name值
不要使用app.js，但如果你想从app.js中使用vue，请在laravel中以适当的方式安装vue，这是推荐的。如果你通过cdn使用Vue，你需要像这样在同一个文件中创建Vue应用。
<script>
const { createApp } = Vue
createApp({
data() {
return {
name: 'project'
}
}
}).mount('#app')
</script>