};conste1 =newEmployee('Tom',100);console.log(e1.getSalary()); 当TypeScript 无法确定 this 关键字的类型时,会出现“this implicitly has type any”错误,因为我们已经在类之外或嵌套函数中使用了它。 在类之外使用时,默认情况下它的类型为 any。 以下是会产生错误的代码示例: class
const foo = new Foo(); foo.on(‘error’, function(err: any) { console.log(err); this.emit(‘end’); // error:thisimplicitly has typeany}); 将类型化的 `this` 添加到回调参数会导致相同的错误: foo.on(‘error’, (this: Foo, err: any) => { // error:thisimplicitly has typeany ...
"this" 隐式具有类型 "any",因为它没有类型注释 'this' implicitly has type 'any' because it does not have a type annotation 解决方案: 将this放在函数参数列表上声明类型即可,使用的时候this不会干扰形参传入顺序 constfn= () => {returnfunction(this:any, ...args:any[]) {letthat =thisconsole.l...
✅ just addthis: anyas the ES5 function's first argument. 只需要把this:any添加到函数的第一个参数位置即可,这不会影响后面正常参数的传入顺序! "noImplicitThis": false,禁用错误提示 👎 不推荐 tsconfig.json demos fix: TypeScript & ES5 functionthiserror,'this' implicitly has type 'any' test ...
The error "this implicitly has type any" occurs when we use the `this` keyword outside of classes and its type cannot be inferred.
在TypeScript中,this 关键字的类型推断可能会导致一些问题,特别是在没有明确类型注释的情况下。当TypeScript编译器无法确定this的具体类型时,它会默认将其推断为any类型,这会失去类型检查的好处。 基础概念 this 关键字在JavaScript和TypeScript中用于引用当前执行上下文的对象。它的值取决于函数的调用...
. -> TS 3.7引入的可选链button?.addEventListener("click",handleClick);functionhandleClick(){console.log("Clicked!");// 'this' implicitly has type 'any' because it does not have a type annotation.this.removeEventListener("click",handleClick);}...
Moreover, it tells me "'this' implicitly has type 'any' because it does not have a type annotation.ts(2683)"...Excuse me, isn't it theJS-Engine'sjob to "annotate"this??? Isn't that what this wholeCall-Sitething is all about in JavaScript? You know, the one that has worked gr...
“this”隐式具有类型“any”，因为它没有类型注解(TypeScript)setTimeout内部的this引用函数上下文，而...
function handleClick() { // ❌ 'this' implicitly has type 'any' because it does not have a type annotation. console.log(this.innerText); } Great! TypeScript is telling us of a weakspot in our code, let’s fix it up.To add the this type definition to our function, first we ...