解决There is a chart instance already initialized on the dom警告

  echarts控制台警告,不影响使用,但影响观感,清除方法如下:

//存在Dom节点:获取已有的echarts实例的Dom节点
var averageChart = echarts.getInstanceByDom(document.getElementById('average-chart'))
//不存在:进行初始化
if (averageChart == null) {
    averageChart = echarts.init(document.getElementById('average-chart'))
    }

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转载自blog.csdn.net/qq_54089372/article/details/126504089