在TypeScript中,当你看到错误信息“argument of type 'string' is not assignable to parameter of type 'object'”时,这意味着你尝试将一个字符串类型的值赋给了一个期望得到对象类型参数的函数或方法。以下是针对这个问题的详细解答: 1. 解释错误信息的含义 错误信息表明,你正在尝试将一个字符串(
Argument of type 'string | null' is not assignable to parameter of type 'string'. 代码: JSON.parse(sessionStorage.getItem("user") ).userId; 原因: sessionStorage.getItem("user") 方法可能返回null , 而null 不是字符串 ,则JSON.parse在执行时就会出错,...
Argument of type '{}' is not assignable to parameter of type '{ id: number; title: string; icon: string; icon1: string; desc: string; img_list: { img: string; width: number; height: number; }[]; }'. Type '{}' is missing the following properties ... 这个错误提示意味着您正在...
public getUrl(url:string):string{ return this.TargetUrl+url; } There is an error messageArgument of type 'string is not assignable to parameter of type RegExp. However, no matter what I put at<--errorspot, it will show the same error. If I replace callingthis.getUrl(url)to a pure ...
Have any ideas why it occurs? Member potato4dcommentedOct 18, 2021 @MaxNvk Whatstate.offer.data.availableFormtype is? Author @potato4d It has typeavailableForm: string | null; Member thank you. Cloud you share the detailed source code with the codesandbox URL?
property filter does not exit on type 1118 6 5 ValidateForm emitter.on emitter.off 报错 1308 0 6 老师。我把那个scroll的组件用ts改了下,这个报错是啥意思,把我类型换成any也不行 461 0 6 老师这里似乎有个口误 1858 0 1 token报红 616 0 5 ...
这个错误是因为试图将一个泛型类型了赋值给一个object类型的参数,但是在 ArkTS 中是不允许的。需要确保工是object类型或者是object 类型的子类型。 参考如下修改: public setObject<T extends Record<string, unknown>>(key: string, objectClass: T): void { this.globalObjects.set(key, objectClass); } 有用...
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function assertNever(x: never): never { throw new Error("Unexpected object: " + x); } function processValue(value: string | number) { switch (typeof value) { case "string": // 处理字符串 break; case "number": // 处理数字 break; default: assertNever...
Describe the bug I assume this is a known bug, but thought I would report it just in case. Having trouble in the beta v2 and 3, where QueryKey can not be of type string. Argument of type 'string' is not assignable to parameter of type 'Q...