How to loop through and add data in ECharts?

To repeatedly add data to ECharts, you can use the setOption method provided by ECharts to update the data. You can call the setOption method in a loop to gradually add data.

Here is an example code showing how to loop through data to add it to a bar chart:

// 初始化图表
var myChart = echarts.init(document.getElementById('chart'));

// 初始化数据
var data = [10, 20, 30, 40, 50];

// 设置初始数据
myChart.setOption({
    xAxis: {
        data: ['A', 'B', 'C', 'D', 'E']
    },
    series: [{
        type: 'bar',
        data: data
    }]
});

// 循环添加数据
for (var i = 0; i < 10; i++) {
    // 添加新数据
    data.push(i * 10);

    // 更新图表数据
    myChart.setOption({
        xAxis: {
            data: ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J']
        },
        series: [{
            type: 'bar',
            data: data
        }]
    });
}

In this example, the initial data is set using the setOption method. Then, through a loop, a new data is added to the data array every time the loop runs, and the setOption method is called to update the chart data. This way, you can continuously add data to an ECharts chart through a loop.