循环以在Javascript中生成数据点

循环以在Javascript中生成数据点,javascript,for-loop,canvasjs,Javascript,For Loop,Canvasjs,我正在尝试生成两种(或更多)产品的面积图,即驱蚊剂和液体肥皂。我正在使用JavaScript库CanvasJS来实现这一点。问题是,我需要大约2000个数据点,而不是这里的4个硬编码数据点,问题是我无法为两个(或更多)产品生成一个for循环,这将为我实现这一点。有人能帮我创建这个循环吗 var chart = new CanvasJS.Chart("chartContainer", { data: [{ type: "area", name: "Mosqu

我正在尝试生成两种(或更多)产品的面积图,即驱蚊剂和液体肥皂。我正在使用JavaScript库CanvasJS来实现这一点。问题是,我需要大约2000个数据点,而不是这里的4个硬编码数据点,问题是我无法为两个(或更多)产品生成一个for循环,这将为我实现这一点。有人能帮我创建这个循环吗

var chart = new CanvasJS.Chart("chartContainer", {
    data: [{
        type: "area",
        name: "Mosquito Repellents",
        showInLegend: "true",
        dataPoints: [{
                y: 83450,
                label: "spring"
            }, {
                y: 51240,
                label: "summer"
            }, {
                y: 64120,
                label: "fall"
            }, {
                y: 71450,
                label: "winter"
            }

        ]
    }, {
        type: "area",
        name: "Liquid Soap",
        showInLegend: "true",
        dataPoints: [{
                y: 20140,
                label: "spring"
            }, {
                y: 30170,
                label: "summer"
            }, {
                y: 24410,
                label: "autumn"
            }, {
                y: 38120,
                label: "fall"
            }

        ]
    }]
});

您可以使用Math.random函数和一个函数来完成它。 该函数采用两个参数设置随机y值的下限和上限

var mosquitoRepellentsDataPoints = generateDataPoints(10000, 40000),
    liquidSoapDataPoints = generateDataPoints(10000, 40000);

var chart = new CanvasJS.Chart("chartContainer", {
    data: [{
        type: "area",
        name: "Mosquito Repellents",
        showInLegend: "true",
        dataPoints: mosquitoRepellentsDataPoints
    }, {
        type: "area",
        name: "Liquid Soap",
        showInLegend: "true",
        dataPoints: liquidSoapDataPoints
    }]
});


function generateDataPoints(lowerLimit, upperLimit) {
    var i,
        arr = [],
        seasons = ['spring', 'summer', 'fall', 'winter'];

    for (i = 0; i < 2000; i++) {
        arr.push({
            y: lowerLimit + Math.round(Math.random() * (upperLimit - lowerLimit)),
            label: seasons[Math.floor(Math.random() * seasons.length)]
        });
    }
    return arr;
}
var mosquitoRepellentsDataPoints=generateDataPoints(10000,40000),
liquidSoapDataPoints=生成的数据点(10000,40000);
var chart=new CanvasJS.chart(“chartContainer”{
数据:[{
类型:“区域”,
名称:“驱蚊剂”,
showInLegend:“正确”,
数据点:蚊虫产卵点
}, {
类型:“区域”,
名称:“液体肥皂”,
showInLegend:“正确”,
数据点:liquidSoapDataPoints
}]
});
函数生成的数据点(下限、上限){
var i,
arr=[],
季节=[‘春天’、‘夏天’、‘秋天’、‘冬天’];
对于(i=0;i<2000;i++){
arr.push({
y:lowerLimit+Math.round(Math.random()*(上限-lowerLimit)),
标签:seasures[Math.floor(Math.random()*seasures.length)]
});
}
返回arr;
}

生成datapoints数组的数据源是什么?此时可以使用Random。最后一个概念是从数据库中获取数据,但这是未来的发展方向。