Uncaught TypeError: Cannot read property 'addEventListener'

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"Uncaught TypeError: Cannot read property ‘addEventListener’ of null"

标签元素还没有创建就调用引用标签的脚本就会出现此问题?

解决方式:
一.将脚本放置在脚本标签的后面 ;
二.判断id是否为null:

  if(document.getElementById("id")!=null){
        document.getElementById("id").addEventListener("tap", function () {
            mui('#thailandTour').popover('toggle');
        });
    }