… WHat you can do to prevent is: console.log (user?.user?.name); user?.user means that js will only try to get the property only if the user is not undefined or null, if user is null, then it will not move forward and null will be printed. Same in the case of user.user?.name, if user.user is not null, the it will get the name property otherwise ...
Zhow to solve this Cannot read properties of null - QB Community
WebAug 11, 2024 · el-cascader组件报错 Cannot read properties of null ( read 'level') 提示错误Cannot read properties of null ( read ‘value‘) m0_67402125的博客 4048 出现这个错误,是因为把id获取错误,改过来便可。 var txt = document.getElementById ("text");// txt写成text WebJun 10, 2024 · 原因是在created函数中通过$ el 获取某个组件元素报错。. 看到网. ing...) properties of undefined ( read ing ‘xxx‘)“ 问题解决: 情况一: 出现该错误的原因是因为 … chunked_transfer_encoding on
vuejs2 - Vue js, cannot read property $el - Stack Overflow
WebPara que de este error el valor de las variables deben ser null o undefined, lo que puedes hacer es lo siguiente: Verificar si el objeto esta declarado La asignación a tu Objeto no reciba parámetros null o undefined Si usas una librería externa verificar que este bien importada let libreriaExterna libreriaExterna.top = 3; Web23 hours ago · I have incorporated a vanta.js animated background for my home screen, but after implementing a Navigation Bar, I am getting the error: TypeError: Cannot read properties of null (reading 'vanta'). The error happens when switching to a page that is not my Home page, which is the only page where the animated background should be visible. WebApr 22, 2024 · 记录bug:vue3 + element-plus中出现开发环境运行正常,但是生产环境出现如下报错 Cannot read properties of null (reading ‘insertBefore‘) Cannot read properties of null (reading ‘emitsOptions‘) 我遇到问题的发生条件,在路由切换过程中,一切都显得很正常,但当点击某一个指定的路由(假设为路由A)后,再点击其他地方就 ... detecting spam email with machine learning