如图,编译时报了bject is possibly 'undefined的错。确实我的obj打印出来是undefined,但是这个方法其实是有的,if下面是走得通的。但是因为构建用了fix规范,以至于会一直报错。百度搜了是ts的问题,然后在ts的compilerOptions里面把 "strict": false,确实不报错了,但是担心统一改成 false会影响项
I have a SFC component and everything works great, but vue-tsc keeps throwing an error about a v-if expression saying that the object is possibly undefined, but it says that regardless of things I'm trying to do to handle it. I'll post the full SFC below but here's the variations ...
在Vue 3中,遇到“Object is possibly 'null'”的错误通常意味着你在尝试访问一个可能为null或undefined的对象的属性或方法。这个问题在使用TypeScript时尤为常见,因为TypeScript提供了更严格的类型检查。以下是一些可能导致这个错误的场景以及如何解决它们的建议: 1. 理解错误信息的含义 当TypeScript编译器看到这个错误时...
鼠标移上去 Object is possibly 'undefined',意思是treeRef.value可能是一个undefined,undefined.function() 浏览器肯定会报错对不对,typescript的好处就是让我们在编译阶段就给我们抛出错误越早发现问题,后期修复工作量就越少,其实这个问题好解决,因为我们知道组件内部是有这个方法,那么我们就给treeRef.value后面强制跟...
vue:168:9 - error TS1117: An object literal cannot have multiple properties with the same name. 168 grid: { ~~~ src/directives/canvasMakeWaterMark.ts:30:3 - error TS18047: 'ctx' is possibly 'null'. 30 ctx.rotate((rotate * Math.PI) / 180); ~~~ src/directives/canvasMakeWaterMark....
Object is possibly null: 对象可能是null 分析:localStorage.getItem(“SET_HISTORY_KEY”) 这个值有可能为空,所以再执行getItem就会报错此刻对象可能为空。 解决: 联合类型 把null的情况写入 类型断言成any类型,any类型上访问任何属性和方法都是被允许的。
ts对resourceId: number = -1这种已经做了推断,不需要再指定类型 直接resourceId = -1就可以 vue中使用this.$refs.createOrEdit.openRole()报错误Object is possibly ‘undefined’. 改用了这种调用形式 components: { CreateOrEdit }, methods: {
TS error: Object is possibly undefined What is actually happening? No error Note It works as expected with Composition API plugin posvatransferred this issue from vuejs/vueJun 12, 2020 posvatransferred this issue from vuejs/composition-apiJun 12, 2020 ...
{proxy}=getCurrentInstance();~~~src/view/webRTC/index.vue:5:23-errorTS2322:Type'string | number'is not assignable to type'string | undefined'.Type'number'is not assignable to type'string'.5~~~node_modules/@vue/runtime-dom/dist/runtime-dom.d.ts:616:3616src?:string~~~The expected ...
问在Vue 3类型记录中提供/注入组件的访问方法，错误对象可能是“未定义的”EN通常，当我们需要将数据从...