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51 lines
1.1 KiB
51 lines
1.1 KiB
import Chart from 'chart.js';
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import PropTypes from 'prop-types';
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import React, { Component } from 'react';
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class BarChart extends Component {
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constructor(props) {
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super(props);
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this.canvasRef = React.createRef();
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}
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componentDidMount() {
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this.myChart = new Chart(this.canvasRef.current, {
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type: 'bar',
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options: {
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maintainAspectRatio: false
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},
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data: {
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labels: this.props.data.map((d) => d.label),
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datasets: [{
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label: this.props.title,
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data: this.props.data.map((d) => d.value)
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}]
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}
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});
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}
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componentDidUpdate() {
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this.myChart.data.labels = this.props.data.map((d) => d.label);
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this.myChart.data.datasets[0].data = this.props.data.map((d) => d.value);
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this.myChart.update();
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}
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render() {
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return (
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<canvas ref={this.canvasRef} />
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);
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}
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}
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BarChart.propTypes = {
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data: PropTypes.arrayOf(PropTypes.object).isRequired,
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title: PropTypes.string.isRequired
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};
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BarChart.defaultProps = {
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data: [],
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title: ''
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};
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export default BarChart;
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