typescript 在打字稿中声明对象数组
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Declare Array of Object in typescript
提问by Nicolas S.
I am trying to declare:
我试图声明：
type ArticleModel = {
_id: number;
name: string;
}
Then in my class:
然后在我的课上：
public models: ArticleModel[];
Where models should be as you may have guess an array of ArticleModel.
模型应该在哪里，因为您可能已经猜到了一系列 ArticleModel。
But node_modules/webpack/node_modules/webpack-core/lib/NormalModuleMixin.js throws:
但是 node_modules/webpack/node_modules/webpack-core/lib/NormalModuleMixin.js 抛出：
error TS2322: Type 'Object[]' is not assignable to type '{ _id: number; name: string; }[]'.
Type 'Object' is not assignable to type '{ _id: number; name: string; }'.
Property 'id' is missing in type 'Object'..
Any help would be appreciated.
任何帮助，将不胜感激。
Thanks in advance.
提前致谢。
回答by Nicolas S.
Ok my bad, I was re-declaring the variable later as:
好吧，我不好，我稍后重新声明变量为：
let models:Array<Object> = [];
Cheers
干杯
回答by Mike PG
if you want to instantiate your object array when you create your class, you can do this:
如果要在创建类时实例化对象数组，可以执行以下操作：
public models: ArticleModel[] = [];
This is in place of doing it in the class constructor.
这代替在类构造函数中执行此操作。
