function random() { return Math.round(300 + Math.random() * 700) / 10; } export default function getData() { return { textStyle: { fontFamily: 'Inter, "Helvetica Neue", Arial, sans-serif', fontWeight: 300, }, dataset: { dimensions: ["Product", "2015", "2016", "2017"], source: [ { Product: "Matcha Latte", 2015: random(), 2016: random(), 2017: random(), }, { Product: "Milk Tea", 2015: random(), 2016: random(), 2017: random(), }, { Product: "Cheese Cocoa", 2015: random(), 2016: random(), 2017: random(), }, { Product: "Walnut Brownie", 2015: random(), 2016: random(), 2017: random(), }, ], }, xAxis: { type: "category" }, yAxis: {}, // Declare several bar series, each will be mapped // to a column of dataset.source by default. series: [{ type: "bar" }, { type: "bar" }, { type: "bar" }], }; }