javascript - How to modify the color of a specified bar in chart.js

Question

I am using chart.js to make a bar chart, and I hope to modify the color of a certain data bar. Does anyone know how to do it?
My code is as follows

function drawChart(chartid,datalist,label){
var ctx = document.getElementById(chartid).getContext("2d");
var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: label,
        datasets: [{
            label:'访问次数',
            data: datalist,
            backgroundColor: [
                'rgba(54, 162, 235, 0.5)'
            ],
        }]
    },
    options
});    
}

For example, if I want to modify the color of the first data, how should I write it in js? Thank you all.

Answer 1

Declare the variable array externally, then write the color you set in it, and then pass the parameters into the setting item

Answer 2

fillColor property