js报错 Cannot read property 'getAttribute' of null
程序员文章站
2023-12-25 09:31:45
页面echarts.js报错:Uncaught TypeError: Cannot read property 'getAttribute' of null ......
页面echarts.js报错:uncaught typeerror: cannot read property 'getattribute' of null
根据报错信息查找原因发现是因为 实例化echarts的元素不存在,查看官方文档发现:
// 基于准备好的dom,初始化echarts实例 var mychart = echarts.init(document.getelementbyid('main'));
基于准备好的dom,初始化echarts实例,也就是只有 页面存在的html元素 才可以去初始化。
如果不知道页面是否存在此html元素,那么在 实例化echarts前 去打印一下看看
console.log(document.getelementbyid('main'))
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