为什么自动完成停止在 TypeScript 类型的对象中工作? [英] Why autocomplete stop working in an object with type in TypeScript?
问题描述
我在一个对象中有一个路由列表,我想将它导入到另一个文件中,并自动完成对象属性.
I have a list of routes in one object and want to import it in other file and have autocomplete for object properties.
index.ts
import allRoutes from './routes';
allRoutes.routeHome;
routes.ts
const allRoutes = {
routeHome: '',
routePortfolio: 'portfolio'
};
export default allRoutes;
一切正常.但是,如果我将类型添加到我的 allRoutes 以进行这样的类型检查:
All works fine. But if I add types to my allRoutes for some typecheking like this:
const allRoutes: {[key: string]:string} = {
routeHome: '',
routePortfolio: 'portfolio'
};
或者像这样:
interface IRoutes {
[key: string]: string;
}
const allRoutes: IRoutes = {
routeHome: '',
routePortfolio: 'portfolio'
};
一切都崩溃了
我在 WebStorm 或 VSCode 中尝试过.如果我为对象属性添加类型 - 自动完成停止工作.为什么会发生?我该如何解决这个问题?
I try this in WebStorm or VSCode. If I add a type for object properties - autocomplete stops working. Why does it happen? And how I can fix this?
推荐答案
一旦用类型 { [key: string]: string }
初始化常量,原始类型就丢失了.如果您想保留原始类型但检查它是否可分配给 { [key: string]: string }
,您可以这样做:
Once you initialize the constant with type { [key: string]: string }
, the original type is lost. If you want to preserve the original type but check that it is assignable to { [key: string]: string }
, you can do this:
function asStrings<T extends { [key: string]: string }>(arg: T): T {
return arg;
}
const allRoutes = asStrings({
routeHome: '',
routePortfolio: 'portfolio'
});
有一个不需要调用函数的解决方案的建议.
There is a suggestion for a solution that would not require calling a function.
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