Пытаюсь добавить HTML элементы с сервера на HTML клиент в ф-ции getCards. Сначала пыталась добавлять без метода onload, но выдает ошибку - " Cannot set property 'innerHTML' of null "
server.js
const express = require('express');
const path = require('path');
const app = express();
const server = require('http').Server(app);
const fetch = require("node-fetch");
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
//БД
const url = 'https://reqres.in/api/users';
//инициализация глобального окружения
global.document = new JSDOM(this.html).window.document;
global.window = new JSDOM(this.html).window;
async function getCards() {
await fetch('https://reqres.in/api/users')
.then(response => response.json())
.then(json => {
console.log(json.data);
const cardsData = json.data.map(el => {
return `
<div class="col col--hidden" >
<div class="card">
<img src="${el.avatar}" class="card-img-top" width="200" height="200" alt="...">
<div class="card-body">
<h5 class="card-title">${el.first_name} ${el.last_name}</h5>
<p class="card-text">${el.email}</p>
</div>
</div>
</div>
`;
});
console.log(cardsData);
window.onload = function() {
console.log('Global is loaded');
document.getElementById('cards').innerHTML = cardsData.join('');
}
});
}
app.get('/', async (req, res) => {
res.sendFile(path.resolve('index.html'));
await getCards();
});
server.listen(3000, (err) =>{
if(err){
throw Error(err);
}
console.log('Server is runnig');
});
HTML client
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<title>Business Cards</title>
<style>
html {
margin: 0 auto;
margin-left: auto;
margin-right: auto;
}
.col--hidden {
display: none;
margin: 5px 5px 5px 5px;
}
.row {
margin-left: auto;
margin-right: auto;
align-items: center;
}
.card {
box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
transition: 0.3s;
width: 250px;
height: 300px;
}
.card:hover {
box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2);
}
.card-group {
margin-top: 40px;
margin-bottom: 40px;
}
.col {
align-items: center;
margin-left: auto;
margin-right: auto;
}
#img {
border-radius: 5px 5px 0 0;
}
.loadMore {
margin-top: 40px;
margin-bottom: 40px;
width: 500px;
border: 1px solid gray;
display: flex;
flex-direction: column;
align-items: center;
margin-left: auto;
margin-right: auto;
}
</style>
</head>
<body>
<nav class="navbar navbar-light bg-light">
<div class="container-fluid">
<span class="navbar-brand mb-0 h1">Business Cards</span>
</div>
</nav>
<div class="card-group justify-content-center">
<div id="cards" class="row row-cols-2 row-cols-md-3"></div>
</div>
<a href="#" id="loadMore" class="loadMore"> Load More </a>
<footer>
<div class="text-center p-4" style="background-color: rgba(0, 0, 0, 0.05);">
© Nimchenko Anastasiya 2021
</div>
</footer>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$( document ).ready(function() {
$(function(){
$("#loadMore").on('click', function(e){
e.preventDefault();
$(".col--hidden").slice(0,3).slideDown().removeClass('col--hidden');
$(this).toggle();
})})
});
//$(document).ready(JSONToCSVConvertor(cardsData));
</script>
</body>
</html>
Средний
