Cannot read properties of null (reading 'addEventListener') at eval

"Cannot read properties of null (reading 'addEventListener')”错误提示意味着在代码中尝试对一个null对象的属性进行操作。这通常发生在试图给null对象添加事件监听器时。

要解决这个问题，首先需要确保在添加事件监听器之前，确保目标元素存在并且不是null。可以使用条件语句或者检查元素是否存在来避免这个错误。

例如，可以使用以下代码来检查元素是否存在并添加事件监听器：

const label = document.querySelector('label');
if (label) {
  label.addEventListener('click', () => {
    console.log(item.value);
    map.centerAndZoom(point, 16);
    map.clearOverlays();
  });
}

这样，当label元素存在时，才会添加事件监听器，避免了null对象的错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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