I'm trying to make a dashboard with React Js using the hooks the data normally be taken from an APi but to test I put hard values in an array. I get the grid but no value is taken into account. I don't know what I'm doing wrong and also want to know if chart.js is the best choice.
Here the error that I get
index.js:1375 Warning: Failed prop type: Invalid prop `data` supplied to `ChartComponent`.
in ChartComponent (created by Bar)
in Bar (at ErrorChart.js:8)
in div (at ErrorChart.js:7)
in ErrorChart (at App.js:20)
in div (at App.js:18)
in App (at src/index.js:7)
import React, { useState, useEffect } from "react";
import ProgressBar from "./ActivityAlert/ErrorMonitoring/ProgressBar";
import ErrorRanking from "./ActivityChart/ErrorChart/ErrorChart";
import ErrorChart from "./ActivityChart/ErrorChart/ErrorChart";
const App = () => {
const [percentage, setpercentage] = useState(1);
const [data, setData] = useState( [])
useEffect(() => {
setpercentage(80);
setData(["12","13","14"])
}, [setpercentage,setData]);
return (
<div>
{/* <ProgressBar percentage={percentage} /> */}
<ErrorChart data= {data} />
</div>
);
};
export default App;
import React from "react";
import {Bar} from 'react-chartjs-2'
const ErrorChart = ({data}) =>{
return (
<div>
<Bar data={data}>
</Bar>
</div>
);
}
export default ErrorChart
I jsut want to display data from this small array
Structure of your data is not valid. You need to pass an object which has to have labels
and datasets
keys.
A sample data can be found in the documentation.
Instead of ["12", "13", "14]
, try passing this object:
{
labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255, 99, 132, 1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
}
Working demo: https://stackblitz.com/edit/react-cdmfuu
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