Echarts动态数据可视化学习(3)：图表中函数的使用场景及方法js快捷函数

    legend: {
        type: 'scroll',
        bottom: 10,
        data: (function (){
            var list = [];
            for (var i = 1; i <=28; i++) {
                list.push(i + 2000 + '');
            }
            return list;
        })()
    },

    var oneDay = 24 * 60 * 60 * 1000;//毫秒
    var now = new Date(+new Date() - 6 * oneDay);//6天前
    var date = [];
    for (var j = 1; j <= 7; j++) {
        now = [now.getFullYear(), now.getMonth() + 1, now.getDate()].join('-');
        date.push(now);
        now = new Date(+new Date(now) + oneDay);
    }
    //console.log(date);

    function getData(shift) {
        var a = parseFloat(Math.random() * 600).toFixed(2);
        return a;
    }
    var dataList = [];
    for (var m = 1; m <= 7; m++) {
        dataList.push(getData());
    }
    console.log(dataList);