// <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();
}
},
{
name: 'Add Dataset',
handler(chart) {
const data = chart.data;
const dsColor = Utils.namedColor(chart.data.datasets.length);
const newDataset = {
label: 'Dataset ' + (data.datasets.length + 1),
backgroundColor: Utils.transparentize(dsColor, 0.5),
borderColor: dsColor,
data: Utils.numbers({count: data.labels.length, min: -100, max: 100}),
};
chart.data.datasets.push(newDataset);
chart.update();
}
},
{
name: 'Add Data',
handler(chart) {
const data = chart.data;
if (data.datasets.length > 0) {
data.labels = Utils.months({count: data.labels.length + 1});
for (let index = 0; index < data.datasets.length; ++index) {
data.datasets[index].data.push(Utils.rand(-100, 100));
}
chart.update();
}
}
},
{
name: 'Remove Dataset',
handler(chart) {
chart.data.datasets.pop();
chart.update();
}
},
{
name: 'Remove Data',
handler(chart) {
chart.data.labels.splice(-1, 1); // remove the label first
chart.data.datasets.forEach(dataset => {
dataset.data.pop();
});
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: DATA_COUNT});
const data = {
labels: labels,
datasets: [
{
label: 'Dataset 1',
data: Utils.numbers(NUMBER_CFG),
borderColor: Utils.CHART_COLORS.red,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
tension: 0.4,
},
{
label: 'Dataset 2',
data: Utils.numbers(NUMBER_CFG),
borderColor: Utils.CHART_COLORS.blue,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
tension: 0.2,
}
]
};
// </block:setup>
// <block:config:0>
const config = {
type: 'line',
data: data,
options: {
animations: {
radius: {
duration: 400,
easing: 'linear',
loop: (context) => context.active
}
},
hoverRadius: 12,
hoverBackgroundColor: 'yellow',
interaction: {
mode: 'nearest',
intersect: false,
axis: 'x'
},
plugins: {
tooltip: {
enabled: false
}
}
},
};
// </block:config>
module.exports = {
actions: actions,
config: config,
};