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# Time Scale - Combo Chart
```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: 0, max: 100});
});
chart.update();
}
},
];
// </block:actions>
// <block:setup:1>
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: 0, max: 100};
const labels = [];
for (let i = 0; i < DATA_COUNT; ++i) {
labels.push(Utils.newDate(i));
}
const data = {
labels: labels,
datasets: [{
type: 'bar',
label: 'Dataset 1',
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
borderColor: Utils.CHART_COLORS.red,
data: Utils.numbers(NUMBER_CFG),
}, {
type: 'bar',
label: 'Dataset 2',
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
borderColor: Utils.CHART_COLORS.blue,
data: Utils.numbers(NUMBER_CFG),
}, {
type: 'line',
label: 'Dataset 3',
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.green, 0.5),
borderColor: Utils.CHART_COLORS.green,
fill: false,
data: Utils.numbers(NUMBER_CFG),
}]
};
// </block:setup>
// <block:config:0>
const config = {
type: 'line',
data: data,
options: {
plugins: {
title: {
text: 'Chart.js Combo Time Scale',
display: true
}
},
scales: {
x: {
type: 'time',
display: true,
offset: true,
time: {
unit: 'day'
}
},
},
},
};
// </block:config>
module.exports = {
actions: actions,
config: config,
};
```
## Docs
* [Bar](../../charts/bar.html)
* [Line](../../charts/line.html)
* [Data structures (`labels`)](../../general/data-structures.html)
* [Time Scale](../../axes/cartesian/time.html)