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# Delay
```js chart-editor
// <block:actions:2>
const actions = [
{
name: 'Randomize',
handler(chart) {
chart.data.datasets.forEach(dataset => {
dataset.data = Utils.numbers({count: chart.data.labels.length, min: -100, max: 100});
});
chart.update();
}
},
];
// </block:actions>
// <block:setup:1>
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
const labels = Utils.months({count: 7});
const data = {
labels: labels,
datasets: [
{
label: 'Dataset 1',
data: Utils.numbers(NUMBER_CFG),
backgroundColor: Utils.CHART_COLORS.red,
},
{
label: 'Dataset 2',
data: Utils.numbers(NUMBER_CFG),
backgroundColor: Utils.CHART_COLORS.blue,
},
{
label: 'Dataset 3',
data: Utils.numbers(NUMBER_CFG),
backgroundColor: Utils.CHART_COLORS.green,
},
]
};
// </block:setup>
// <block:config:0>
let delayed;
const config = {
type: 'bar',
data: data,
options: {
animation: {
onComplete: () => {
delayed = true;
},
delay: (context) => {
let delay = 0;
if (context.type === 'data' && context.mode === 'default' && !delayed) {
delay = context.dataIndex * 300 + context.datasetIndex * 100;
}
return delay;
},
},
scales: {
x: {
stacked: true,
},
y: {
stacked: true
}
}
}
};
// </block:config>
module.exports = {
actions: actions,
config: config,
};
```
## Docs
* [Animations](../../configuration/animations.html)
* [animation (`delay`)](../../configuration/animations.html#animation)
* [Animation Callbacks](../../configuration/animations.html#animation-callbacks)
* [Bar](../../charts/bar.html)
* [Stacked Bar Chart](../../charts/bar.html#stacked-bar-chart)
* [Options](../../general/options.html)
* [Scriptable Options](../../general/options.html#scriptable-options)