Cannot read property 'getElementsByTagName' of null
在調試JS代碼的過程當中遇到錯誤：Cannot read property ‘getElementsByTagName’ of null 以下圖： 修改成：document.getElementsByTagName（’li’）; 緣由：getElementsByTagName是document的方法，只能經過document調用web
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相關文章
- 1. Cannot read property 'getElementsByTagName' of null解決辦法
- 2. Cannot read property 'appendChild' of null
- 3. Cannot read property 'addEventListener' of null
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