import React, { Component } from "react";
import Chart from "chart.js";
class LineChart extends Component {
componentDidMount() {
const ctx = document.getElementById('canvas').getContext('2d');
const myLine = new Chart(ctx, {
type: 'line',
data: {
labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
datasets: [{
label: 'My First dataset',
backgroundColor: 'rgb(255, 99, 132)',
borderColor: 'rgb(255, 99, 132)',
data: [
1, 4, 3, 5, 8, 90, 48
],
fill: false,
}, {
label: 'My Second dataset',
fill: false,
backgroundColor: 'rgb(54, 162, 235)',
borderColor: 'rgb(54, 162, 235)',
data: [
1, 8, 6, 10, 16, 10, 45
],
}]
},
options: {
responsive: true,
title: {
display: true,
// text: 'Chart.js Line Chart'
},
tooltips: {
mode: 'index',
intersect: false,
},
hover: {
mode: 'nearest',
intersect: true
},
scales: {
xAxes: [{
display: false,
scaleLabel: {
display: true,
labelString: 'Month'
}
}],
yAxes: [{
display: true,
scaleLabel: {
display: true,
// labelString: 'Value'
},
ticks: {
min: 0,
max: 100,
// forces step size to be 5 units
stepSize: 5
}
}]
},
legend: { display: false }
}
});
}
render() {
return <div style={{ width: "75%" }}>
<canvas id="canvas"></canvas>
</div>
}
}
export default LineChart
如果需要動態效果,直接操作對應的數組即可!