Current File : /var/www/html/news/public/bower_components/chart.js/docs/developers/updates.md
# Updating Charts
It's pretty common to want to update charts after they've been created. When the chart data is changed, Chart.js will animate to the new data values.
## Adding or Removing Data
Adding and removing data is supported by changing the data array. To add data, just add data into the data array as seen in this example.
```javascript
function addData(chart, label, data) {
chart.data.labels.push(label);
chart.data.datasets.forEach((dataset) => {
dataset.data.push(data);
});
chart.update();
}
```
```javascript
function removeData(chart) {
chart.data.labels.pop();
chart.data.datasets.forEach((dataset) => {
dataset.data.pop();
});
chart.update();
}
```
## Preventing Animations
Sometimes when a chart updates, you may not want an animation. To achieve this you can call `update` with a duration of `0`. This will render the chart synchronously and without an animation.
Mini Shell