每当我尝试className='fa-spin'在React中使用FontAwesome微调器图标(带)时,我收到以下错误:
Uncaught DOMException: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.
at removeChild (http://localhost:5000/public/bundle.js:19553:22)
at unmountHostComponents (http://localhost:5000/public/bundle.js:13683:11)
at commitDeletion (http://localhost:5000/public/bundle.js:13727:5)
at commitAllHostEffects (http://localhost:5000/public/bundle.js:14419:13)
at HTMLUnknownElement.callCallback (http://localhost:5000/public/bundle.js:5035:14)
at Object.invokeGuardedCallbackDev (http://localhost:5000/public/bundle.js:5074:16)
at invokeGuardedCallback (http://localhost:5000/public/bundle.js:4931:27)
at commitRoot (http://localhost:5000/public/bundle.js:14508:9)
at performWorkOnRoot (http://localhost:5000/public/bundle.js:15510:42)
at performWork (http://localhost:5000/public/bundle.js:15460:7)
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编辑:现在问题出现了几次,代码本身并没有什么特别之处.我一直在使用微调器作为加载图标,每当微调器被内容替换时就会发生错误.例:
return (
<div>
{this.state.loading === true ? <i className="fa-spin fas fa-sync"></i> : (
this.state.recipes.length === 0 ? (
<div className='text-center'>
<h2>There doesn't seem to be …Run Code Online (Sandbox Code Playgroud) 这是一个常见的主题,但在这个特定的用例中,我一直无法找到解决方案.我在一个表单中有一个动态数量的复选框,正在提交给Node.js服务器.我的复选框看起来像这样:
<input type='hidden' name='ingredient[num]' value='off' /> //not currently in use, see below
<input type='checkbox' name='ingredient[num]' checked />
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选中所有复选框后,服务器会收到类似这样的内容(在req.body.ingredient之后):
{ num: ['on','on','on'] }
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当取消选中某些或所有复选框时,我希望它接收具有相同数量值的类似内容:
{num: ['on','off','off'] }
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我尝试在我的复选框之前和之后使用值='off'的隐藏输入,但这没有用.选中时,服务器会同时接收"开"和"关"值.我也尝试了一种JavaScript解决方法(下面),我还没有让它工作.有任何想法吗?
<script>
let form = document.getElementById('addIngredients');
form.addEventListener('submit', function(e) {
e.preventDefault();
let boxes = document.querySelectorAll('input[type=checkbox]:not(:checked)');
boxes.forEach(function(box) {
box.setAttribute('value', 'off');
});
form.submit();
})
</script>
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编辑:这不是建议的重复问题.使用隐藏输入时,正文解析器似乎不会将复选框分组为数组.例如,有三个盒子,都经过检查,服务器正在接收[ 'off', 'on', 'off', 'on', 'off', 'on' ]
我为 webhook 设置了以下代码:
var express = require('express');
var router = express.Router();
var nodemailer = require('nodemailer');
var middleware = require('../middleware');
var stripe = require("stripe")(process.env.SECRET_KEY);
// router.use(require("body-parser").raw({type: "*/*"}));
router.post("/webhook/all", function(req, res) {
// Retrieve the request's body and parse it as JSON
// var event_json = JSON.parse(req.body);
middleware.sendEmail('Webhook Test', 'event_json');
res.sendStatus(200);
});
module.exports = router;
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当我使用localhostPostman 测试它时,它可以工作,但是当它运行时,它会响应 404 错误:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>Cannot POST /webhook/all</pre>
</body>
</html>
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我唯一的猜测是它与我有关HTTPS,因为Stripe 文档是这样说的: …
这是我的查找请求:
Recipe.find({'author.id': {$not: {user}}}
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这是文档:https : //docs.mongodb.com/manual/reference/operator/query/not/index.html
这是错误:
Error: Can't use $not with ObjectId.
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我想查找当前用户未编写的所有食谱。参数工作正常,所以这不是问题。一定有办法做到这一点,否则我做错了吗?