JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.highcharts.com/highcharts.js"></script>

<div id="container1" style="height: 400px"></div><div id="container2" style="height: 400px"></div>

JavaScript

$(function () {
    var category1 = [1,2,4,6,9];
    var category2 = [6,3,1,8];
    
    var allcategories = category1.concat(category2);
    var arr1 = [2,2,0,3,4,0,5];
    var arr2 = [6,0,7,0,8,9,0];
    
    var uniqueCat = allcategories.filter(function(elem, index, self) {
        return index == self.indexOf(elem);
    }).sort();

    $('#container1').highcharts({
        xAxis: {
            categories: uniqueCat
        },

        series: [{
            data: arr1
        },{
            data: arr2
        }]
    });
});