👀 Views: 2 💬 Answers: 1 📅 Created: 2025-06-11

ajax chart.js jquery javascript JavaScript

I've been struggling with this for a few days now and could really use some help. I'm working on a personal project and I'm working with Chart.js to display some data that I'm fetching via an AJAX call... I initiated the call using jQuery, and while I can see in the console that the data is being returned successfully, the chart does not update with the new data after the AJAX call completes. I have confirmed that the AJAX call is correctly reaching the server and that the response contains the expected data format. Here's a snippet of what I'm trying to do: ```javascript function fetchData() { $.ajax({ url: 'https://api.example.com/data', method: 'GET', dataType: 'json', success: function(response) { console.log('Data fetched:', response); updateChart(response); }, error: function(xhr, status, error) { console.error('AJAX Error:', error); } }); } function updateChart(data) { myChart.data.datasets[0].data = data.values; // Assuming data.values is an array of numbers myChart.update(); } fetchData(); ``` The chart is initialized outside of these functions as follows: ```javascript var ctx = document.getElementById('myChart').getContext('2d'); var myChart = new Chart(ctx, { type: 'line', data: { labels: ['January', 'February', 'March', 'April'], datasets: [{ label: 'My Dataset', data: [], // Initially empty backgroundColor: 'rgba(75, 192, 192, 0.2)', borderColor: 'rgba(75, 192, 192, 1)', borderWidth: 1 }] }, options: { responsive: true } }); ``` After calling `updateChart`, the chart does not visually change. I also checked that `myChart.data.datasets[0].data` is updated correctly by logging it. I'm using Chart.js version 3.7.0. Is there something that I'm missing? Do I need to do anything else besides calling `myChart.update()` to ensure the chart reflects the new data? I've double-checked that the AJAX response structure matches what I expect. The console output shows the correct data, yet the chart remains unchanged. What could be the reason for this and how can I fix it?